"Timescales"

I have been very pleased with the service whilst in the clinic, all of the staff and Dr's have been exemplary. The one thing that is infuriating me is I need another set of injections but can not be given an appointment despite the fact that I am in constant pain and rendered disabled from undertaking day to day activities. I am unable to work or take care of my young family, and the outlook is being left to rot in this position until April or May by which time I would have lost my job. The standard line is you are next on this list but the list is full, I will be presenting a formal complaint.