Telkom unable to resolve upgrade issues

I was contacted by a Telkom Telesales agent early in January to upgrade my line to 20Mbps. He assured me that I would be able to get these speeds as our area is rated for 40Mbps. I accepted the offer, after which my email account was wiped without my consent. I had to cancel the service two weeks later (after I picked up my new modem from the storefront as nothing was delivered from Telkom) as the best speed I could get was 6Mbps. I then asked that my line only gets upgraded to 10Mbps and that all my services should be restored. To date, I still do not have a login or an email account. I phoned the call centre more times than I can remember (at least 6 times), waiting more than 30 minutes in their cues every time, went to the storefronts every Saturday since January. Not one of these interactions resulted in my situation being resolved. There is no way to escalate either through the storefront or through the call centre not is there any way to track my requests. This is totally unprofessional and unacceptable customer service!!!