poor service lacking integrity, dishonesty in deleting emails.

I called at the begining of june to advise that my banking details will change as i have changed banks. i was advised to send a bank statement with my new banking details and to indicate on the subject line the ffg. " Contrabutions and refund purposes and my medical aid number. to the email address. *** the email was sent on the 07/06/19 @ 12.41. fedhealth failed to change details. and denied that the email was sent. my medical aid was suspended unbeknown to me. i had visited the doctor yesterday and was told that i have no medical aid and should pay cash for my treatment. i require an explanation and apology from fedhealth and my medical aid to be reinstated with immediate effect with my new banking details.