Reallocation of Payment code to invoice post VAT submission

Hello. I have allocated a payment to the wrong invoice and submitted the VAT return.
Is there anyway I can reallocate this as the payment has been tagged and locked?

Hello @Stacey11

No once a transaction has been included in a return it is locked.

Was the payment to the correct client?, just the wrong invoice?

Thank you. Yes, it was to the correct client, just the wrong invoice.