Poor service - No service

I would like to lay a complaint against the MR price headoffice as i have been requesting a paid up letter for my Mr Price account since the 23/03/2016 and still no letter has been received <br> <br> I am so dissapointed and irritated as i logged three calls one to request a settlement letter (Which was never sent) an sms was sent confirming incorrect balance, the Agent that helped me the second time captured the incorrect e-mail address which resulted in me having to call again (My airtime that will not be reembursed and when the balance was paid they confirmed that the incorrect amount was settled, i spoke to a lady named Zikhona who assisted with the amount being written off and the account closed but no paid up letter has been sent till today. <br> <br> When you owe them they dont stop calling u and when u have paid them look to what lenghts u have to go to obtain a paid up letter its unbelieveable