Cahoot was advertising a Sunny Day Saver account for up to £3000 at 5%.
I put £3000 in and got £11 interest after the 1st month. I was surprised to see the interest rate go down to 0% as I had over £3000 in (£3011). This was not made clear. It says refer to Key facts as to why 0% interest.
https://www.cahoot.com/content/dam/sites/santander-uk-cahoot/resources/documents/Sunny_Day_Saver_Issue_5_Factsheet_CAH1MC0558APR25IPGCDT2.pdf
I have just noticed that as from 2nd Dec, Sandander Edge are doing the same. No interest if you have over £4000 in the Edge saver. Sneeky! Transfer the interest every month or lose out.
Santander Edge Saver (Issue 5)