Bad customer service

On Friday morning I went to Mr price to pay balance and close my account than I was told to wait 24hrs before than I went saterday again I was told that an error was made on my payment which is overpaid and reversed that amount. Proceed to cellphone counter to call head office to stop airtime that is transferred to my account and close account another story that I must paid 1.30 again than I pay it waiting for Tuesday to close it than another story today Wednesday I call head office I hold until my airtime finished such inconvenience and incompetence in stores. No one call back to assist customet