"still waiting for my perscription to be sent to..."

I visited almost two months ago for a check up on how I was getting on with the medication I was prescribed, I told the doctor it was going well and the symptons I had been almost gone, it was a quick consultation and the doctor said they would send the details of my next perscription to my gp so I could get more medication... 2 months after that consultation, I have called my gp to see if the perscription was sent and they have not recieved anything... I have called so many times and still nothing two months after my consultation, I have even rung the hospital directly and the reason why my GP had not received my prescription yet was due to secretarial issues? I'm giving up hope and im tired of constantly ringing up the hospital and the GP to see if my prescription has arrived, without it I cant get a new supply of medication and annoyingly the symptoms I had have now come back, cant keep chasing it up constantly as its getting tiresome and m symptoms I have are making things uncomfortable