ESA85A medical report form

I am transfering from IS to ESA. Just received a ESA85A medical report form, which states: the person meets the criteria for having limited capability for work' I advise a return to work is unlikely for at least 2 years.
The available evidence from ESA50 med 3 and medical evidence has been used in this case. The available evidence suggests that the client has significant level of disability due to multiple physical and mental health problems, such that they would have limited capability for work.
Overall, there is insufficient information available to suggest client would satisfy the criteria for support group but it is likely they would score above threshold at the RWCA with a combination of descriptors.
The ESA50 Med 3 And medical evidence indicates the client is unlikely to return to work in the longer term.

I am confused, does this mean if I produce more info ie GP letter, that I may make the support group?

What is the RWCA?

Thankyou Gordon,
As I have a ESA85A will I still be called for a medical?

On the letter I received from DWP it states :I can ask for them to look at the decission again to see if it can be changed. There may be some facts we have overlooked or you may have more information which affects the decision. Is this different to an appeal?

It is possible to ask for a reconsideration without an appeal. However, the DWP have to carry out another recon if you then decide to appeal. With recons currently taking as long as 3-4 months, you can imagine how long the process would take if someone chose to ask for a reconsideration and then lodged an appeal!

I understand now. Thank you