Mason Slots lists a two-step welcome package: 100% up to 200 EUR plus 50 bonus spins with the code "welcome", then 50% up to 100 EUR plus 50 spins with the code "key", according to AskGamblers. Each step needs a 20 EUR deposit and carries 40x wagering on the bonus, with a 5 EUR max bet per CasinoGuru. Every bonus figure below is attributed to the review sites. The offer listing advertises up to 450, EUR which does not match the 300 EUR total both review sites show, so we use 300 EUR here.
450 EUR on our site, 300 EUR on both review sites
The official domain is masonslots.com. Every bonus figure below comes from AskGamblers and CasinoGuru, and a gambling.com Ireland review supplies a few details.
The offer listing advertises "Up to 450 EUR + 100 Free Spins". AskGamblers and CasinoGuru both add up to 300 EUR and 100 spins (200 EUR plus 100 EUR). No step makes up the other 150 EUR, so the 450 EUR figure is unverified and we do not use it. The spin count of 100 matches in all three places.
The operator is N1 Interactive Ltd, which holds Malta Gaming Authority licence MGA/B2C/394/2017 according to CasinoGuru. The same company also runs BetAmo and Cookie Casino (gambling.com). CasinoGuru does not list Mason Slots on any relevant blacklist.
Two deposits, codes "welcome" and "key", and what each cap needs
The first deposit earns a 100% match up to 200 EUR plus 50 bonus spins, entered with the code "welcome". The second earns 50% up to 100 EUR plus 50 bonus spins, entered with the code "key" (AskGamblers). The minimum deposit is 20 EUR for each step.
A 100% match means the 200 EUR cap needs a 200 EUR deposit: 20 EUR gives 20 EUR of bonus, 100 EUR gives 100. EUR The second step is 50%, so its 100 EUR cap also needs a 200 EUR deposit, and a 20 EUR deposit there gives only 10. EUR To collect the full 300 EUR you therefore deposit 400 EUR in total across the two steps.
The spins are worth 0.10 EUR each according to gambling.com Ireland, which warns that regional terms can differ. On that value 50 spins are 5 EUR of play and all 100 spins are 10. The game the spins are played on and how many arrive per day are not stated by the sources.
40x on the bonus: 800 EUR of bets on a 20 EUR deposit
Both AskGamblers and CasinoGuru give wagering of 40x the bonus amount for both steps. A 20 EUR first deposit gives 20 EUR of bonus and a target of 800. EUR A 100 EUR deposit gives a target of 4,000, EUR and the full 200 EUR bonus means 8,000 EUR of bets. On the second step, the 100 EUR bonus means 4,000. EUR Both caps together come to 12,000 EUR of betting.
Slots count 100% toward the requirement, excluding certain titles, according to gambling.com Ireland. Which titles are excluded is not found. How the free-spin winnings are wagered and how many days the bonus stays valid are also not found, so we cannot say how fast the 800 EUR has to be played.
The 5 EUR max bet turns 800 EUR into at least 160 bets
CasinoGuru and gambling.com both give a maximum bet of 5 EUR while a bonus is active. At that stake, the 800 EUR target from a 20 EUR deposit needs at least 160 bets. The 8,000 EUR target at the full first cap needs at least 1,600 bets, and the 4,000 EUR second-step target at least 800. Smaller stakes mean proportionally more spins of the reels.
CasinoGuru's record of the offer shows the maximum cashout from the bonus as unlimited. That is the one unusually open term here, and it comes from a review site, not from the casino's own terms page. We treat it as unconfirmed until the live terms confirm it.
Withdrawal caps of 4,000 EUR a day and 40,000 EUR a month
AskGamblers lists withdrawal limits of 4,000 EUR or USD per day, 10,000 per week and 40,000 per month. The payout times are 0 to 1 hours for e-wallets, 24 to 72 hours for cards, 3 to 5 days for bank transfers and 24 hours pending, with no cheques.
CasinoGuru lists 18 payment methods, among them Skrill, Neteller, PaysafeCard, Visa, Mastercard, Trustly, MiFinity and Revolut, and notes that not all are available in every country. Which methods are excluded from the bonus is not found. Listed currencies are EUR, USD, CAD, RUB, NOK, PLN and NZD.
The terms list 128 restricted countries and territories, the same list as Avalon78, among them the Netherlands, Poland, Norway, Brazil, Russia, the UK, the US, Spain, Italy, France, Portugal, Australia, Belgium and Ontario; Germany, Austria, Canada outside Ontario, New Zealand and Finland are not on it. AskGamblers names a shorter set (Australia, Belgium, Italy, Spain, Turkey, the USA and the UK) and says its list may be incomplete.
Rejected complaints at CasinoGuru, resolved ones at AskGamblers
CasinoGuru rates the terms "Unfair" with 7 issues. Its editorial names bonus withdrawal requirements, win caps on low-risk play and strict bonus-hunting restrictions. CasinoGuru holds 9 complaints, of which 1 was resolved and 8 rejected, and a safety index of 7.2 (an older record says 8.4).
AskGamblers shows 6 complaints today, all resolved, with an average amount of 168 USD and an average response of 1 day. Examples include a 26 NZD MiFinity deposit not credited, a 110 EUR MiFinity withdrawal declined repeatedly, a 100 EUR Neteller deposit unresolved for days and a 500 EUR self-exclusion failure. None of the complaints we found is about bonus terms specifically; they concern payments.
AskGamblers gives a CasinoRank of 9 and a player rating of 9.1 from 111 reviews (6.8 in an earlier record). The Trustpilot figure is not usable: the review data says 4.1 from 52 reviews, while an earlier record found no reviews. Gambling.com notes that support can be vague on bonus requirements.
Who the Mason Slots package fits
It fits a player in an allowed country who deposits 20 EUR to 100, EUR accepts 40x on the bonus (800 EUR to 4,000 EUR of bets) and is comfortable with a 5 EUR stake limit. The unlimited cashout, if confirmed, is a plus.
It does not fit anyone who needs the validity period, the wagering on spin winnings or the excluded games in writing before depositing, because they are not published. It also does not fit a player counting on 450, EUR or one expecting a no-deposit offer: we found none on AskGamblers or CasinoGuru. The Monday Free Spins and Wednesday Reload named in the listing have no published terms. Read masonslots.com yourself before depositing.
Myths vs facts
- Myth: Mason Slots gives up to 450 EUR as a welcome bonus.
- Fact: AskGamblers and CasinoGuru both total 300 EUR (200 EUR plus 100 EUR) and 100 spins. The 450 EUR in the listing is unverified.
- Myth: A 50% second step still needs a small deposit to reach its cap.
- Fact: The 100 EUR cap needs a 200 EUR deposit, and a 20 EUR deposit earns only 10 EUR of bonus.
- Myth: A 9.1 player rating on AskGamblers means the terms are fair.
- Fact: CasinoGuru rates the same terms Unfair with 7 issues, and 8 of its 9 complaints were rejected.
Before you claim
- Open masonslots.com and read the bonus terms before you accept.
- Check that your country is not restricted before registering.
- Work out your target first: 20 EUR deposit, 20 EUR bonus, 40x, 800 EUR of bets.
- Keep every stake at or below 5 EUR while the bonus is active.
- Find the validity in days and the excluded games before you deposit.