Very angry and Irritated

I've been calling Blue Label connect for the past couple of months requesting a paid up letter.

Every time I call, I hear the same nursery rhyme "We will escalate the issue to the relevant department to put your name on the list that will be sent to head office. You will receive your letter in three working days" Mind you the account was paid up last year around June.

I am now gatvol. this is the utmost worst service ever. All I need is that letter to make my life better. Urgent response would be appreciated.