Very confusing letter re ESA

I got message from UC saying I had been assessed as unfit for work, will receive £336.20 in addition to UC claim, any backdated will be worked out. Letter should be here within 7 days. Job coach cancelled next booked appt. Man recon form arrived today, waiting for promised statement from NICS. Still confused!

Hi, I was already on UC, as self employed Child minder, but had to give that up due to ill health. So was told to apply for PIP and ESA. 4 April 19. Have been having fortnightly t/c appts from job coach to see how I'm doing, and monthly UC payments. So, confusion re letter about NICs saying not eligible, 2 days later UC message. Does it make sense to you?

Yes, I've been on UC for about 2yrs as self employed childminder. Had to quit CM in March 19,told to apply for PIP and ESA. Had PIP f2f in May, zero score, man recon in (grossly incorrect). Had ESA f2f in June, got the letter about NIC payments on Sat, then got UC message about being paid on the Wed. Am I being dim?

Hello, re all the above - I've now received statement from NICS which says the yrs ending 17 & 18 are Full. However, after checking via personal tax account, it says yr ending 17 includes 3 weeks voluntary contributions and that means I won't qualify for NS ESA. Does that mean I have to reapply? If so, for what? And who to?
Also, UC have sent me a message which says I'm getting ESA. I'm not! And also not getting the UC payment till August (waiting time?)
Regards