EAD (WorkPermit)

I have applied I-130, I-485 and work permit application on September 21st 2017. Two weeks after they have sent request for initial evidence. I sent all requested documents. So my case is registered on November 7th. Guess what. I am still waiting for the work permit. More than a month ago I received an e-mail from USCIS saying that they are reviewing my case however since then I have not heard from them. This is unbelievable how long the process takes. There is no communication on their side whatsoever. Whenever I call they tell me to wait. I lost three job opportunities because of it. When the one files work permit application it is written that USCIS has up to 90 days to at least inform the applicant about their decision. It depends on understanding the date of the registration of my case I basically wait for the work permit from September last year. Taking into account that my case was registered on November 7th I wait 7 months instead 3... And of course I would lie if this situation did not exert an influence onto my marriage. It is very very annoying and frustrating.