How Service Providers (SPs) can join GePG?

How Service Payment Providers (PSPs) can join GePG?

What are Procedure when bill does not receive control number from GePG?

Wrong amount posted by the customer through mobile platforms (MNO channel)?

Wrong Amount Paid through Bank transfer (TISS / SWIFT).

What are Payment Types Available used by GePG?

Payment done against another irrelevant control number.

What are the Available Billing Interfaces used by GePG?

What are the Available Payment Channels used by GePG?

What are the available important GePG Documents and where to it?