During our visit, the lights were turned off in the restaurant and they refused to accept payment by card. They didn't accept the transfer either. We were short of 300 AMD in cash before the final amount of the check. I had to go to the bank and wait in line to withdraw this money and close the account.
We spent an extra half hour on this. I advise you to think about alternative payment methods if you are in a building where your electricity is cut off and you do not have your own generators.
As a result, lost time and a spoiled impression.