"Gall stones"

Last year I was diagnosed with gall stones and put on the waiting list for an operation. After hearing nothing for a few months I was contacted by someone in the NHS asking if I would be prepared to travel to a private hospital for the operation. I said I would be grateful of the opportunity, as the pain is sometimes unbearable. I was told that the hospital chosen would be in contact within 4 weeks. Here we are 4 months later and still nothing. However last month, I was contacted by a message saying I was to have a phone appointment in early September. So after waiting for the day I was again disappointed when the Surgeon called me, only to tell me they had nothing to tell me, and only asked after my wellbeing. Whilst I point no blame in their direction (after all they could be operating on me) I am finding the whole experience totally frustrating. I am no closer to my operation and I am still in a lot of discomfort and pain.