Savings pot interest

I have Shawbrook and the interest has gone up from 1.33% to 1.55% but I’m still earning 1.33 and want to switch. I have a certain amount it says interest earned in august but that’s not visible in the amount in the savings pot. If I do switch will I lose that interest? What should I do?

If you close the post and then make a new one at the new rate, you will still get the interest earned in the current month so far from the closed pot - it will just land in your main account on the 1st.