"Long delay in diagnosis and response from..."

Having waited six months for an urgant MRI and CT scan, (despite numerous phone calls) which revealed a significant condition I raised a compliant with the complaints department. Compaint department assured me that I should expect to meet with them by 4th of June 2014. Still waiting, every extension seems to go to voice mail or you can send an e mail but none of these are responded to. This increasing the stress that I am already experiencing from brain surgery and craniotomy. Very very poor service from appointments and complaints. Once I had my scan the care from ophthalmology and speed of accessing treatment was very good.