Write rich-text instructions for every payment method. Customers see them above the deposit form. One text per method, in the language you write it in.
Every payment method has its own instructions box, so you can tell customers exactly how to pay: your wallet number, account title, what to write in the reference, or how long a transfer takes.
Admin > Settings > Payment Methods, click Edit on a method and fill in the Description field. Customers see it on Add Funds after choosing that method.