Telkom bad service

I have a Telkom sim in my phone but the data hasn't been working for about 6 weeks now and I forfeit more than 600 Megs which expired at the end of March. Telkom support said they are busy with upgrades in our area and we have to change network to MTN but I have a very weak MTN signal in my area so it is useless. I also have a 4 MEG line with uncapped data but my Telkom ADSL line has been down for over 2 weeks and the support consultant says it is a cable fault and technicians are waiting for material. I have the integrated data sim and used up the 1GB data about 2 weeks ago. I went onto the internet and bought 2GB + 5GB data bundles for the sim card but couldn't get it to work. I eventually contact support but was told I can't buy extra data for this sim and there is now ways I can get a refund or even transfer the data to another sim. What a *******!! It is Telkom's fault that I don't have ADSL and why I have to pay extra for data which I also can't use and they are not prepared to help at all. Their service is been going downhill for years now and they just don't seem to care