ESA problems

Ok so I haven't been paid since October 2015, partly my fault as I didn't keep up to date with sending in sick notes. My doctor only gives me 1 month sick notes and due to my anxiety, which is why I'm claiming ESA I find it really difficult to go to the doctors and have to try and prepare myself for it.

At the start of February I sent in a sick note, I called and the Job centre said there is a 2 week period where there is no sick note so I went back to the doctors and got another one. I still wasn't paid, I called again and they needed student finance information because I am doing an open university course at home. Then they tell me I have missed a medical and needed to provide my reasons for this. I did this over the phone on 11/02/2016 and they have just called me to say due to the work load they haven't had a decision back yet.

Please can somebody help me. I feel like they are just fobbing me off because I don't know what I am saying. I am so stressed and will likely have nowhere to stay if this doesn't get resolved soon.