Elderly df and foreign banks

[Limetart]

My df is stubborn. And 90.
He has two bank accounts. One in Ireland and one in Scotland. He lives in England.
We're now in the position of needing to pay for some care. He hasn't managed his money properly for 2 years and refused to let us take out power of attorney.
The problem is that his Irish bank just don't understand our need to access his money.
He doesn't have 2 step authentication because he doesn't have a smart phone.
He has a bank card but sometimes they just block his transactions.
He used to be able to move money online but isn't capable now. We have no idea how to get into his online banking.
We can't put a chq in his uk bank because branches are in Scotland. And it could take a lot longer and cost more.
He needs his own money and just can't get it.
I asked if I could set up an app for him on my phone and the bank said absolutely not.
What do we do?

You can find details of the AIB services for the elderly at this link.

Thank you

I had similar issues with a friend during covid. I had to get a written letter from him
Giving permission to do certain tasks. Had to open a new account online using his details. The problem was that he had to go in person for a security check. And his nursing home wouldn't let him out because of covid. We managed it eventually but it took 18 months. I then closed his passbook account on his behalf. I think we did it over the phone. His usual bank were very unhelpful.