Thanks for taking the time to add a reply. It is appreciated, even if you have perhaps avoided answering one of my main questions, ie "Can Tesco advise if the have any plans to change any of this?".
You have said "I'm afraid we don't have an automatic process for this" and basically advised, as I already knew was the case, I need to open a fresh account after each and every interest rise, transfer the money from the previous account, and receive in the post all the new account paperwork (the latter not being environmentally friendly at all if it is happening regularly).
So, I will slighly re-word my question and ask again:
Given the current frequency with which interest rates are rising, and especially given what Tesco did back in January, are you aware of any plans Tesco might have to make life simpler for existing, loyal customers, by automatically increasing the underlying rate on their Internet Savers to match the latest rate each time it changes, thereby avoiding the need for said customer to have to keep opening new accounts, transferring money each time from previous account, close previous account, and receive in the post, full new account paperwork/booklets each and every time?
I appreciate you may not know yourself, but would hope you can, on my behalf, ask a relevant colleague and feedback their answer here.
Important note re what happened in January
An automatic process, whilst not currently in place, does seem to have been, unexpectedly I admit, put in place (so is perhaps available to be put in place again?), in January of this year. Here is a copy of the message I received by email at the time - "We’re giving you a little something to thank you for being a loyal customer. As the Bank of England base rate recently increased, we’re passing this straight on to you by increasing your Savings Account Standard Rate by the same amount of 0.15% from 11th January 2022 to help you save even more.
What does this mean for me?
Your savings will now increase without you having to do a thing. Keep saving with us and enjoy this little extra - it’s as simple as that."
In other words, without me having to open a new internet saver, close the original one, and receive paperwork/booklets by post, the underlying standard rate, and therefore the standard plus bonus rate, was increased.
Your further reply to this part of my original question would be appreciated, meantime, on a positive note, your reply "in terms of interest" does clarify the situation for that part of my question.