Very Poor customer service

since my husband passed away last year, I've requested Discovery to issue a letter that says he's no longer has a medical aid with them. this is requested by the Masters. up until today they didn't provide with the letter. I emailed Vincent Mbinda and he's been playing games with me ever since. I then took my own Medical aid and I requested to be emailed the statement but nothing. if you're tired of my money then let me know I can ship off.