Disgusting Tap to Pay that doesnt work

This is becoming a common occurrence. Many times i abandon my sale as the tap to pay function is eratic and declines. This time around, i have decided to take the declined receipts fronm the merchant and i will log each and every incident till FNB realises how bad their Tap to pay service is. Dont tell me its the network or POS machine at the merchant, i went to 2 different merchants after each other with different POS machines and didnt work, kept getting decline.