Acount mixup

Today I noticed my account is suspended. So I contact Telkom. 1. Firstly they installed my ADSL Line a few months back and they don't even have my correct address on their system. 2. They don't even have my correct Cellphone number on their system and my number has not changed in 5 years. 3. They don't even have my Debit order details. Now payments is behind and I must pay penalties. I never even received invoices for they did not even have the correct e-mail. They had all the correct details when They came to install the ADSL Line. This is clearly an admin fault on their side but everyone I spoke to are clueless as how to fix this. I once again gave them all the correct details. I made Payment today and now I am waiting for my internet connection who knows how long this will take