Advice on children’s savings account

[Starcat25]

How many children’s savings accounts can be opened at the same time?
My child’s grandmother opened one with their birth certificate and pays a small amount each month, they also have another savings account which I’ve put bits of Xmas and birthday money in over the years.

Now they’re getting a bit older thinking of opening a savings account with them so they can learn more about their money.

Can you have another account as well as those two?

I don't see why you can't have as many as you want.
What may be limited is a Children's ISA account.

www.moneysavingexpert.com/savings/child-savings-tax-free/

You may wish to read all the advice on the above.