Bad service

Telkom has a bad service. I have an account with them 4 devices and they couldn't get a payment and when I found out about it I went to pay. After I got a message that I owe and call them they said i must email proof which I did still they say same thing. After I called them 3 time ,i get to found out that I pay to other account which came surprised me that my accounts are not linked . It has different references. Still i paid again to the right account and the still deduct double end of the month in my account. While I still in shock of that boom my phone is locked . I call them they say the collectors have not located my money. Been 2 days my phone is locked , I don't owe them anything instead I have credit. The call center people says they cannot do anything I.must wait for 7 days in order my phone to be unlocked. I never expreince this bad service in my entire life