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SlotsCalendar is an affiliate site, meaning we include affiliate links in our content. If you visit a site through our link and make a deposit, we earn a commission at no additional cost to you. This may influence the product placement on our site, but it does not affect our evaluations. Our reviews and recommendations are impartial, following a commercially independent editorial policy with a well-established methodology. Be aware that the information on this page is updated frequently, but changes might happen without our immediate notification.

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Code
Play

18+. Play Safe. New customers using Promo code BASS20 only. Opt in required. 1x per customer. Min. £10 deposit and stake on Big Bass Bonanza only. Max. bonus £20 with 35x wagering to use on Big Bass Bonanza only. Bonus expires 24 hours from issue. Eligibility rules, game, location, currency, payment-method restrictions and terms and conditions apply.

US is restricted.
Make your 1st deposit of £10 to get a 200% Up To £20 bonus from WilliamHill Casino. Become a new player using the BASS20 and play it on Big Bass Bonanza Big in the 24 hours in which it is available. By completing the 35x wagering requirements, you will get to cash out a cap of £20. If you’re determined, here is the step-by-step guide to redeem it:
  1. The “Claim it” button below will open the casino web page.
  2. Press “Join” to start the registration process. You'll see a form with two steps.
  3. You must select a title and input your name, last name, birth date, email address, mobile number, street address, or postcode.
  4. After creating a username and password, the following step is to select and answer a good security question. After that, you can choose the amount of a deposit limit and a daily, weekly, or monthly restriction.
  5. Accepting the terms and conditions of the casino and certifying your age, you tick this box.
  6. Make the minimum deposit and start playing!
Advantages
  • The minimum deposit sum is good
  • To become a registered player won’t take you more than 2 minutes
Disadvantages
  • The maximum withdrawal sum is small
WilliamHill Casino’s terms and conditions apply.
Report Issue
Code
Good
Make your 1st deposit of £10 to get a 200% Up To £20 bonus from WilliamHill Casino. Become a new player using the BASS20 and play it on Big Bass Bonanza Big in the 24 hours in which it is available. By completing the 35x wagering requirements, you will get to cash out a cap of £20. If you’re determined, here is the step-by-step guide to redeem it:
  1. The “Claim it” button below will open the casino web page.
  2. Press “Join” to start the registration process. You'll see a form with two steps.
  3. You must select a title and input your name, last name, birth date, email address, mobile number, street address, or postcode.
  4. After creating a username and password, the following step is to select and answer a good security question. After that, you can choose the amount of a deposit limit and a daily, weekly, or monthly restriction.
  5. Accepting the terms and conditions of the casino and certifying your age, you tick this box.
  6. Make the minimum deposit and start playing!
Advantages
  • The minimum deposit sum is good
  • To become a registered player won’t take you more than 2 minutes
Disadvantages
  • The maximum withdrawal sum is small
WilliamHill Casino’s terms and conditions apply.
Play

18+. Play Safe. New customers using Promo code BASS20 only. Opt in required. 1x per customer. Min. £10 deposit and stake on Big Bass Bonanza only. Max. bonus £20 with 35x wagering to use on Big Bass Bonanza only. Bonus expires 24 hours from issue. Eligibility rules, game, location, currency, payment-method restrictions and terms and conditions apply.

Details

Offer Value £20
Wagering 35x
Min. Deposit £10
Max. Cashout £20
Expire: Never Expires
Restricted Countries
Afghanistan, Aland Islands...
Good

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