First, the game micro transaction is already complicated you need to buy A coin to purchase pearls but to buy Acoin you will need to get through an other 3rd gateway party wallet, which the Cherry Credit is the worst of all.

Its support are slow and more like scammer to me. I was waiting a day for recharging money to the wallet, once my money is charged they frozen my ID and request a picture of me with a credit card + ID card/Passport. Seriously such a sensitive privacy information like that, I saw a lot of complaints on their FB page but no reaction from them at all.
Also you can't get any unspend credit to be refounded from them no matter how much you don't like their service because they said in the terms of service that there is no refund after recharged. Who would expect suspicious service like this. 

I would like to support the game, but please consider to improving the future various payment methods. If a user could pay directly to the game via credit card without a middle man that would be the best.