The more money I put in my Natwest ISA, the less interest I get. They frequently lower the interest rates they offer to 'reflect market conditions'. My Money is probably devaluing the longer it sits in this pointless savings account. The only use this ISA has is that it is a place for me to store my money, away from my current account.

The new E-isa rate is only available to new customer whereas existing customers have had their rate reduced by .25% to pay for it. Follow my lead and go elsewhere and remember if you are a new customer thinking of taking out this account this is the way you will be treated.

I've watched the interest on my Natwest Mini isa dropping consistently every month. I've placed at least £400 per month in and it's currently got about 9.5K in there... getting £4.20 return pm. Rubbish isn't it?
I'm moving my ISA and ditching them for my current account, been with them for 20 years.
Useless...

NatWest doesn't explain changes clearly. Their customer service is horrible!

In my case, when I transferred my Cash ISA to Natwest, they failed to explain that there would be a loss of interest for the time the cheque was in the post from my previous provider and then I would not start to get interest until the 2nd day after the money was cleared to my account. In effect, I lost 7 days interest which was not explained to me so I am quite annoyed with Natwest. Perhaps I should have asked however I think an honest provider would have explained this penalty of switching the account. I will stay with Natwest for now but they have earned no loyalty from me so far. I notice that Halifax guarantee interest from the day the previous account is closed so that there is no loss of interest.

I have "maxed" my NatWest cash ISA for 5 years now - no problems at all, am now getting just short of £100 a month interest.