Bad Telkom customer service

I canceled my LTE uncapped wifi contract online early May. I handed the device in at the Canal Walk Direct store on 13 May 2020. This means there was no wifi activity since that day, 13 May 2020 from this device. I had debit orders deducted for end May and end June. I went to the store to query several times with no success. I called the call centre a few times as well but can't get through, instead I get a longgggg menu to select from, bla bla bla... that process goes on too long so I dropped the calls. The call centre called a few times in May only, but they talk no sense to me, saying they sending out a technician to check the internet speed, all this while the device is handed in already on 13 May! I dealt with Grant, the manager at the Canal Walk store who promised to sort out my cancelation. Right now I'm very frustrated because nothing has come of this issue. I don't have dt orders to throw away to Telkom month after month! The Case number regarding this matter is ***6. TELKOM SORT THIS OUT PLEASE!!! Mrs Edwina Johannes