Pathetic service

This seems to be the only way that one can get a response from you. I yet again received a bill for a contract that was cancelled, I logged a complaint on the 06/06/2019 for the same issue. I've had monies go off my account on the 01/06/2019 already, a new invoice released for the upcoming month and you guys still fail to cancel the contract. The gentleman I spoke with confirmed that he'd contact the store where the device was returned on the 07/06/2019 and effect the refund. This has still not yet been done.