NO/BAD SERVICE

Recently Discovery has not paid me for a prescription drug for insomnia, even though my script is still valid and monthly payment is exhorbitant. I had to pay for it myself on 2 occasions and was asked to send an invoice and proof of payment. This was done on the second occasion as I was not given an invoice on the first and despite emailing them four times with the information, the only reply I had was a reference number. I am a pensioner and cannot afford to pay for chronic medication