I transfer money to my three children all the time, but this issue causes all kinds of trouble for me. It is also my biggest frustration with Monzo.
Because payees cannot be created and saved, it is impossible to add two payees with the same bank account but with different references.
As an example… My three children all have building society accounts with the same building society. The account number and sort code is the same, and only the reference changes - the reference is the child’s Building Society account number.
Only one of the children at any one time is in the “frequent” list.
So I use the transactions feed instead. However…
If I choose “Child B” from my transactions list and click “Send money to Child B”, but it happens that it was “Child C” that I paid most recently, then although the name says “Child B”, it is Child C’s building society account number in the reference field which is automatically picked. It is a nightmare because it can be an age before you realise the mistake, and you have to simply remember which 10-digit reference belongs to which child.