Just back from the bank
I already have current account and custody account, but need to have ready access to money in order to buy additional shares and didnt want to leave it in my current account. They also have an online mechanism of alerting you if you have insufficient funds in your current account on any given day - they give you time to lodge money to your current account on the day (transfer from savings account?) to avoid going overdrawn
I dont plan on putting big money in the account, and yes, I was told the rate will drop to 3% on 1st May.
While its nice to actually be treated like a customer, I would much prefer to just fill out a form and drop it in their letterbox or in the post