Very unfortunate experience!

My procedure was performed after Dr Chris Anagnostopoulos returned from a very long leave period. 8 July 2023 - the more complex procedure which included bone augmentation and sinus lift with implant prep went well however the second one, easy implant prep to my bottom left - is still a major concern today. After being treated with a course of cortisone and no change to the numbness, I realised that my nerve was severed. This has very little chance of rehabilitation. Emails have been sent to the practice and the response remains. “We have to wait” As a patient do you accept this as common practice?