How to ask about WCA Report, and payment issues

Hey
I had my work capability assesment on Monday and was going to put a note on my online journoul asking for a copy. Does anyone know what heading l should be asking for this under? Would it be a service issue or payment or a note to my case worker. I am not sure which one to put it under or would l just call instead.

I am also waiting on them checking payment issues from June to August as l never recevied any payment due to my old job putting through things that were not actually income for me. I previously worked in a bank and had gathered up shares for the 15 years l had been there. It was a 3 teir share system and while they were in the top 2 teirs they never belonged to me it was only when they fell to the bottom teir that they belonged to me as but this took 3 years to complete and l left my job a month before they fell into my possession. I did not care as l was so ill the shares did not come into my head. Bur after a few months of leaving my job l received these payslips in that was the bank selling these shares of in my name and the tax paid on them came to £4000 odds. An amount l never received. But UC were convinced this was earnings. I provided my bank statements to prove l had not received this amount. And they said in my last correspondance on my journal they were going to contact my old job to clarify. That was last week. Not heard anything yet but l had previously contacted inland revenue about it myself who said it did not match up and then contacted my old job who explained about the shares company selling of theses share which would have been mine if l had left a month after but the wage slips were showing the tax of £4000 odds going in to payments then at the other end going straight back out so therefore l had no payment in my bottom section.

It's taken them over a week to get back to me which l was going to phone and ask what is happening. Along with asking for a copy of my report. But l don't want to seem over eagar. But am at the stage now l have had 1 payment in 4 months from them and need my benufit as am struggling. 

Would l be better calling or leaving it. 
Thanks
Lors