Bereavement help needed

I was next to kin to my brother who passed away 27th march 2024.
He was 66 yrs old on the 21/3/24.
After he passed away I registered his death and notified his pension, his pip. And his universal credit.
I went into his bank to cancel his account and was told by the cashier that he had state pension and pip deposited into his bank but because he had died I couldn't with draw it as it is fraud.
He was diagnosed with terminal cancer and so he asked me to arrange a pure cremation which he paid for himself.
Trouble is he still has bills to pay and no money left.
Pip has sent me a form asking me questions about his death and said they think they owe him some money, they say if they decide to pay it will be deposited into my account 
What I was wondering is if he had pension put in his account would they allow me that too it's to pay bills I don't want his money, I would rather he be here than me receive his money but I have to pay his bills and I don't have money myself 
Any advice please