Missed csll

Had a missed call from 0800 023 2635 this morning and then a message saying:

“Personal Independence Payment tried to call you regarding your reconsideration request. We will call you again this afternoon/tomorrow morning.”

But the last I heard from them was on 7th July when I got this message:

“Update on your PIP claim. You asked us to look at your decision again. We expect to look at your case by 22/8/2025. You do not need to contact us unless your circumstances change. Thank you”

I’m now up the wall. What could they be calling me for? I’m a really anxious person so I hate it when they get in touch. It makes me feel like I’ve done something wrong and I’m in trouble.