Brother has closed bank account my deceased Mother opened for my kids

[54isanopendoor]

My Mother opened a savings account for both of my kids after they were born.
She recently died. Before she did, she gave me a bag of 'bank paperwork' & told me 'you can get a copy of my death cert from your brother & either close or continue the bank a/c in due course, its' up to you'.

My kids are 14 & 17 but both have ASD & little concept of money. My older one gets PIP & I officially deal with DWP re this as he's quite vulnerable otherwise. I have no idea what is in the accounts (I suspect less than £500 each) but I would prefer to keep them going until the kids are 21, which was what was agreed when I wrote to give permission in 2005.

I just got a text from my SIL to say: 'cheques for kids in post, sent registered'.
Can my Brother close these accounts & send cheques like this with no say at our end?

I hadn't looked at the paperwork but I just did & its a mix of 2 kids accounts & another one of hers. The two kids accounts don't have an amount or a whole account number. So, I don't suppose the bank will speak to me about it.

I appreciate everyone who has replied & help me understand this bit x

You need to check who owns the bank account

I think got these it's actually the kids )jointly with your mum) so they go direct to the kids outside of the Will.

They are the equitable owner, mum was legal owner.

If so the Bank are correct.

Else if it's 100% mums then it should be paid to dad and then up to him what he does.

It seems the cheques were sent by the bank.
But Have not turned up.
Much irritated texting by SIL ('I paid for a service - check your post box - I've been told you refused delivery - trust me, I WILL get to the bottom of this...')

Got my local lovely postie onto it. SIL had sent it, not to my permanant address of the last 16 years but to a temporary one that I moved out of a year ago now. In another country. So yes, whoever now lives there had refused to sign for it.

I suggested that I give her the kids bank details & she gets Mum's bank to send direct (UK bank to UK bank). Silly mare. Just the person for my Mum to trust to 'split the house between the 4 grandchildren' (she died intestate). FFS...