Telkom does not care about clients and cant fix their own mistakes!

We have a business line account with multiple numbers of which one is our ADSL line, until August 2017 everything run smoothly one bill for all of them, beginning Jan 2018 we open our business and no internet, IT source, your Telkom is off, line suspended, why? No payment, how come? Pay every month on time! One or other "Idiot" supposedly without our knowledge change the billing, removed the ADSL to its own invoice, which get send by snail-mail to the wrong physical address! Bottomline we did not receive we did not pay! So we pay manually and asked for all lines to be billed on one invoice, send to my email every month for payment, so after dealing with call centre getting reference after the second attempt that nothing happened, so I tried a third time, still no joy, bill is wrong, emailed the agent who sent is, no reply, more emails, than eventually reply, just to inform I must phone call centre!! I spend 3 hours on this, with no success what is going to change, absolutely useless, pathetic, stupid, arrogant Business, no client service or satisfaction!