********** billing

On the 27th feb 2015,my contract phone was delivered and couple days later I received a call from the service provider confirming my receipt of the package and I told them I did though it's not working and the consultant told me that they are going to activate it,two weeks went by without anything and I took it upon myself to call them to enquire what was the hold up and I was told it will be sorted,I then waited for a month and after a month I phoned them again and same empty promise on activating the handset ,even been told that the manager will call me,which never did and came April I was billed R437 on the phone I've never used I then phoned them again explaining to them what had happen with my previous attempts to try solving the matter and I was told that,that manager is no longer working there but they will investigate the matter of which they never again,I even suggested that we cancel the contract and be let to pay for the unit only and to my surprise yesterday 20/05/2015, I received a call from some nu debt collectors claiming that my acc has been handed over.i don't even have a phone number to that phone