HSA over contribution, trying to correct

I had an excess of $2,500 contribution to my HSA in 2023. I paid the 6% tax on the $2,500 in my 2023 taxes. I am trying to get Fidelity to allow an excess contribution correction for 2023 for $2,500, but they claim I can only take it a regular distribution bc we are past 2023 and now in 2024. They are saying I take it as a distribution and have my accountant (TurboTax) deal with how it will be handled. This can’t be right.