need cards to deposit casinos only gbp, need 50 pcs per month, also can use payment systems with English bin
There are many reputable casinos, I wonder why you have to make it difficult for yourself to use GBP to deposit money 
Moreover, why do you need every month? I was quite curious 
On your offer, have you tried using virtual cards to pay? I mean, you recharge those virtual cards and pay by itself. Just a random suggestion, I'm not sure it can be done