Pension Clarification

Divorce was finalised in 2003.
We had two pensions, let's call them A(Larger), and B(Smaller).

Fast Forward 21 years, I am living in another country, getting ready to retire.
Both Pension Scemes have been transfered multiple times over the last 25-30 years and are now with different Pension Administrators now in the UK
Trying to decifer the Pension Statements, so I ask both Schemes to clarify whats mine and whats hers, which I assumed were split 50/50.
They both ask for a copy of the Divorce Decree.
I dig it out the original and find a "pension sharing Annex' sheet at the back, that says she gets 80% of Pension A.
But nowhere in the decree is there a mention of Pension B.

Did I give up more of Pension A in return for keeping 100% of B?
I have no recollection!
The numbers seem to be somewhere close, but I dont remember!

So, I sent a copy of the Decree to both schemes administrators.

Pension A wrote back saying:
"We are unable to provide Isolated Valuations or Projections until the Pension Sharing Order has been finalized... We have written to Mrs "Ex" to remind her we are still waiting for her response before we can finalize."

Pension B wrote back saying:
"We have received a copy of you divorce decree, with the attached Pension sharing annex, but it does not reference our scheme number. Please provide any other pension sharing annex that applies to our scheme number?"

Basically its not referenced at all in the decree.
I dug back in my file for Pension B and found a letter dated December 2003, referencing a phone call I made to them, and noting that there was to be a transfer of ownership. Attached was a "Deed of Assignment"... which is blank, so clearly I never responded...
Again, I have no recollection!

The Solicitor I used is probably gone now, as he was in his late 60's then, but a search says his compay is still running...
I found them and wrote to them.
Anything else I can do to get this resolved and clarified?

If there is more than one pension it would be usual, if the pot was big enough, to take all of your ex’s share from one of them rather than splitting numerous pensions.

Sounds like that is what happened with your pension A but your ex has never done her bit to tell them what she wants to do with it,