It would be nice if you could have a option to pay for the isa fee yearly.
And the option to pay the fee out of your account balance, either ISA or SIPP
Also paying for it once a year wont be a constant reminder that some competitors isa are free at each monthly debit for the people who have this issue.
Yearly payment would be desirable
2nd this. Either pay the isa from cash in the isa or a one off yearly payment.
Recurring monthly costs become a pain to keep on top of.
You wouldn’t want to pay from the ISA as then you’re effectively losing money from your allowance.