Many casinos give you a bonus every time you deposit or every week/month depending on the previous weeks/ month play.

CasinoBonus AmountDescriptionReviewClaim Now
William Hill£3500 a month20% up to £175 per deposit. The Monthly Loyalty Bonus is only paid up to 1 time a day and up to 5 times a week, to a maximum of £3,500 per calendar month.ReviewVisit Site