harassment phone calls and poor service

<p>I have settled my vodacom account exactly a year ago which i no longer have with them. I am still getting calls to settle the account . i have sent proof of payments to so much people and even requested a settlement letter A YEAR AGO 2016 and i still havnt recieved anythng from them, this morning 20jan 08.40am i got another call to settle the accout now my question is what happend to the infomaton i sent 3 times already and still im receiving calls for collection, to me this is very poor service and i want these calls to stop and i would like to recieved my settlement letter i requested jan2016. i cannot send emails all the time the same infomation to people what are they doing .. </p> <p>ill end this complaint with the worst service i ever received i no longe use the vodacom network.... i am soo happy with CELL C service provider quick and responsive </p>