Bad service and poor customer service

I have paid and settled my contact with Vodacom and they handed me over to Hp attorneys for outstanding fees and not closing the account. I have paid Hp attorneys and settled the acc and the promised to. Send me a paid up letter but I haven’t received it and when I call I am being sent from pillar to post by diff agents. Vodacom and Hp please update your records as this is affecting my name and blocking me from applying for credit.