I also found that if they proved a fax number it's better to fax the stuff. The fax number they give you goes directly to the computer of the person handling your case.

I have been receiving SSDI since 1999. At the end of last year 2014 I got a letter saying it was time for them to review my case again. One week later I got another letter saying never mind everything was ok. then in January I got a packet to fill out and return within 10 days. they also wanted doctors reports etc. I faxed them then got another packet to fill out and so did my husband. My doctors also got stuff and I had to stay on their case to get them to do it. One doctor told me she only opens her mail once a month. she had 10 days to get back to them.

It's a pain in the butt but you have to stay on top of it. Make phone calls fax stuff if you can or always send everything certified. But I was first denied then got a lawyer and with the lawyers help got approved within a couple of months. When you get approved like that the most the lawyer can take is $5,000. If you have to go before a judge they can take 25% of your back pay. And it's all taxable. you will have to claim it on your taxes.

Find a lawyer that deals with this stuff and just be prepared. I have known people that have fought for 3 years to get it.

Good luck