I am disgusted by this restaurant

Yesterday 6th October 2021 we visited RJ for a meal but it was unfortunate to learn that they are **********. The waiter who was assisting double paid our bill and denied that. The manager who was in charge showed us an invoice that only 1 payment reflected of which there were 2 and if there was any reversals that is done within seconds but nothing. The guy inserted our card and later ejected without canceling the transaction or clicking payment then he inserted it again then this time clicking payment so that this will be the one to appear in their speedpoint receipts. They promised to call us but I knew there and then that the guy was a *********