This is due to the fact that a greater risk should be justified by a big win.
Features of betting
Please note that you can pay ten pounds to any of the casinos on the corresponding page. But, only if they work with this way of payment. In this case, the payment method you use must be presented in the casino list. Separately, it is worth paying attention to whether the casino will provide deposits "10 get 50" to players from your country.
Online casino
Also, it should be remembered that many casinos do not allow to withdraw money for the same cards from which the deposit was placed. That is, if the deposit was made using Mastercard, then the gain will have to be withdrawn using Visa. Also, putting ten pounds on the deposit, you can not withdraw exactly the same amount. The casinos make a withdrawal limit much higher.
Specificity of obtaining bonuses from deposits
Even if the online casino provides a deposit service of £10.00, do not expect that such a small contribution will bring you revenue. In most cases, the smallest amount that casino visitors deposit to receive an additional bonus is higher than the minimum allowable level for getting bonuses. So to get bonuses of ten pounds, you need to make a deposit of about 5 pounds.
This feature is due to the fact that casinos pay the costs incurred as a result of processing deposits. In this circumstance that explains why online casinos often work with high minimum deposits. This practice is most common in the USA.
True, these restrictions are applied most directly to US citizens themselves. For residents of other countries, the deposit rate is usually lower.
So if you want to deposit "10 gets 50", you must make serious money and expect that the amount you can withdraw will significantly exceed your contribution. However, it is natural that those who take a risk, have a much greater chance of becoming winners and getting jackpots. And in this respect, well-known casinos are the most profitable partners.