No feedback after ***** confirmed

I received a Vodacom sms confirming that the contract phones taken under my name were done so **********ly on Friday 08/01/2016. I sent an email on the same day requesting them to send me a letter stating that I do not owe the entity. There has been no acknowledgement of receipt of my emails since then which is frustrating me as I need that letter. I cannot find a number that I can contact with regards to this anywhere. I know I am going to receive acknowledgement of receipt of this complaint and that's about where it ends every time until they remember I must be reminded to pay for phones that I do not have. <br> May I get a settlement letter detailing the amounts overdue and outstanding under my ID number as written off today!!!