Telkom LTE - no service

I took out a LTE contract on 6/05/2019. From start, it did not work properly. I reported it, Case nr ***9. After numerous calls without response, I did an on-line cancellation for a service that does not exist. Telkom then contacted me (finally) and as I need internet, I gave them a last chance to rectify. The technition came out on 22/06/2019, confirming there is no LTE service (ref ***). After numersou calls to Telkom, this case is not yet cancelled., but the monthly debit orders are collected for a service that they promise but not deliver. Please, Telkom, cancel the contract. This is not what I signed up for. )