I’ve already mailed them. I’m from Germany, and I guess the law tells the bank to verify that there are no “illegal” transactions are going on.
Since the amount of some payments was over 5k, I can understand that action.
I am from india , and i was in the same situation an year ago, when I asked leadbolt then they provided me an invoice , but bank denied it , and then they asked to provide an invoice that was issued by me. If you want I can mail you that invoice , just PM me your email id.
Actually , when you have a new new current account , and you want to recieve a wire transfer , then most of the private sector bank ask for invoices till 6 months , after you have submitted 6 invoices you can receive wire transfer without any invoice.