telkom billing

Where do i start first of all i was on the 4 mbps adsl line then i asked for a 10 meg linr was up and going as fiber came to our place asked for it was installed and never udes it as i was still on my adsl 10 meg line phoned in as my account was going to high i never missed a payment then loged a fault on my account was not sorted out the lady said at telkom and they can go back on the recordings told my it is a fault i must keep paying my bill of 800 dod so acc keep going up now my internet is suspended due to what this is bull **** i need this sorted out immediatly ********** 736