wyman

Hi, My wife's cash ISA account over-subscribed for £100 for 23/24 tax year, I have already informed the service provider and they reversed that transaction. However, the service provider asked us to contact HMRC regarding this case, but we are unable to contact HMRC via phone (either hotline too busy, or the agent said nothing she can do about the ISA), could you please advise anything we should do?