what a Terrible servcie and incompetency from billing department

What a terrible servcie from Supersonic

To start with last year when I signed up with them I had issues with installations and after that they billed me when I was not active and when I asked no one could answer I had to call and ask for help on numerous occasions and till date no one provided me with feedback and boom all of a sudden am told I have to pay full amount and then they will credit me , one they cant even provide me with the correct invoice and or explain what needs to happen all they can do is suspend my account now I just spoke to Lesiba and all he can say was he will take this up with billing dep and well they dont answer whenever we ask to be transferred to their department ,to me its like I just suspend and send invoices and no check what is happening with the clients guys you have competitors and if you dont want our business' just say so and dont let us suffer like this, ITS A year and they deicide to now suspend my service while they havent fixed their mistake