I had a problem trying to purchase some groceries at Checkers and i was told that the mobicred app locked itself after 3 attempts

I had a problem trying to purchase some groceries at Checkers and i was told that the mobicred app locked itself after 3 attempts. The lady,Lerona phoned me back awhile later because it took 2 hours to reset and she told me that it has unlocked and i can use it again.