Acoustic neuroma

I was diagnosed with an acoustic neuroma about 8 years ago. I have developed substantial hearing loss in my left ear. After doing the research I chose to follow the "wait and see" treatment of the neuroma. At first I needed to have my hearing checked once a year followed by an MRI, the first year the neurologist/brain surgeon saw me and did several tests during my visit, after that he merely consultated over the phone. After four years of this I was told by the ear, nose and throat specialist who originally diagnosed the neuroma that the growth pattern showed so little growth from year to year that I only needed to visit the doctor and do the MRI's once every two years and that I did not need to see him any longer that the brain surgeon would get in touch with me to remind me to come in. It's been three years since then and I haven't heard a word from the surgeon. I've noticed a substantial loss in hearing since my last MRI but am not fee