Accidental over investments in ISA's in tax year

I have just opened a cash ISA, investing first £1 to test the transaction then £15,000, totalling £15,001 I have also just opened a stacks and shares ISA with £5,000 invested. I forgot I have a standing order for £25/month into a third (cash) ISA - having paid in £175 this financial year I have therefore over-invested in ISA's this year by £176. Please advise on my best course of action to rectify this and prevent losing gains from the ISA's. Thank you

Hi,
You will need to decide which account to cancel as an ISA and stop any further payments until after 06/04/25.
Thank you.