Bank information name and sending institution

I have account by Interactivebrokers would like to use my Revolut GBP local account.
By adding bank account my broker want to know. 1.Bank Information Name 2.Sending Institution.
My sort code is 23-69-72 i put it on and as a bank is there (Prepay Technologies Ltd).
1.Bank information name will be (Prepay Technologies Ltd)
2. Sending institution will be (Revolut Limited or also Prepay Technologies Ltd)

I asked chat staff and received answer sending institution is (Revolut limited)

Hi Roman,

I am also interested in this topic, as I’m trying to fund my IB account via Revolut.
There is also a field called “Account Number” - what did you use in this field?