Appalling Customer Service

I have been contacted by TS Legal Services on behalf of Vodacom stating that I owe Vodacom R3383.88. Mu account was paid up in full. Neither Vodacom or TS Legal Services will provide me with copies of my statements and invoices as requested. Vodacom will also not provide me with any documentation that they have sent me stating that I owe this amount of money. I get shoved around from customer collections, to Vodacom legal to TS Legal to customer services. TS Legal Services do not answer their phone. What Vodacom is doing is totally *********