Disgusted by service

Discovery decided to change service providers from optipharm to medxpress have been sending my prescription they keep saying they haven't received. Don't understand why fix something which is not broken. after nnumerous attempts to check if they have received prescription, got thru 2 a consultant explained my story who didn't advice me that he was transferring me to someone else. Who didn't even help guess what they still don't have it. I'm not sure as to whats gonna change now when I resend. Disgusted by the service