How to properly organize the acceptance of bank payments on the site?

Question

Payment systems

Good afternoon. We need to enable the user to pay for an order in an online store using their visa or mastercard.
Our site on Bitrix.
Our bank to which LLC is Gazprombank
I found a solution in the form of a Payment system (Internet acquiring) Gazprombank
I also found a service: Paymaster
In the first case, as I understand it, the only plus is that other Gazprombank customers will be able to pay for orders without a commission?
In the second case, based on the tariffs , we will pay 2.7% from any type of card or 2% if paid with VTB, Promsvyazbank, Standard Bank. ?
What is the best way to connect the acceptance of payments on the site with a minimum commission? And what other advantages can there be from connecting acquiring directly? Or are analogues of robokassa more profitable in this case?
Please help me to sort out this issue..

Answer 1

https://kassa.yandex.ru/
It is better not to even start your own card acceptance service. Millions of pitfalls.

Answer 2

Commissions are individual. 2.7 is an indicative commission, it will probably be lower.
Submit an application and our managers will offer you the best rate for commissions for accepting bank card payments

Answer 3

Each bank has different commissions, it is necessary to sit and see for yourself what suits you and what does not. The mainmine website helped me a lot with choosing a bank (here - https://mainmine.ru/priyom-platezhej-na-saite/calc... ) I indicated the turnover, rubles / month and type of activity in the payment services commission calculator, I issued a list of banks already with the indicated percentages.