Hi, I had a similar problem, MYA wrote to my GP to confirm I was fit for surgery because of medical history, it took my GP nearly a month to finally respond and it’s only from me chasing it like mad that they ever did respond! I phoned the doctors and actually asked for my GP to phone me, he sent the letter that same day! Just keep nagging them! The nurses at MYA did tell me not to worry though and said even if they don’t get a letter my op wouldn’t be cancelled, but it’s nice to have confirmation 🙂 I don’t know your situation but hope that was helpful! X