Paid Up Letter

I have been in contact with Vodacom for a week now trying to get a Paid up letter for a contract that is still showing on the Credit Bureau.

I have 3 references for calls and an email which I received acknowledging the request yet no email or letter since 19/01/2018, when I first called.

Then they still tell me they pick up my requests and also confirm the correct email addresses ( I've given 4 up to date) and yet NO LETTER!

They are quick to call back for sales but poor with their services, and for every call (20/1/18, 23/1/18, 25/1/18) I get informed that it takes up to 48 hrs for the letter to be sent. The incompetence is mind boggling for such a well known company!