Telkom - Unresolved high billing ammount headache

I’m a bit frustrated. Telkom has been a service provider for me for almost 20 years. Never realy had much trouble and if any it was sorted out without any hazzles. But, unfortunately this time is different. I have upgraded from a 4mb adsl uncapped speed line to a 10mb uncapped. This durting their lockdown special where you only pay R699.00 pm - thus the telkom home dsl unlimited premium. I’ve done the upgrade end of August. The new bill was a shock, however - R1931.59. Followed up (Ref nr #***9). It was indeed incorrect and should be around R699.00. They will rectify it. Needless to say - the same repeated end of September - again followed up (#***3); again they confirm it should be R699,00; again end of October the bill haven’t been rectified. Third time follow up (#***3) and again conffirmed it should be R699,00 but the bill says R1962,00. Dec bill ammount - R1992.82. I now hope hellopeter will help resolve this headache once and for all.