Amended Tax return submitted - Changed payment method - HMRC not updating?

Hi All, Hopefully a quick one for someone. Back in October (6th) I submitted my tax return for 22-23. I then received a letter from HMRC to say they believed it was incorrect (Which it was, my mistake to which I hold my hands up) and I owed more. So to make sure all of my paperwork was aligned, I submitted an amended tax return (October 17th) to reflect my original omission. I also however, changed the tick box from recovery via my tax code to paying in one lump sum. I the sat waiting for the normal statement with payment details so I can pay. Nothing..., I checked my online account, Sum owed £0. I then rang HMRC to tell them I wanted to pay asap why haven't I had an updated statement (Please note, my tax code changed during this, then changed back after the re-submission) I was told it may take a few more weeks. Shortly after the phone call to HMRC, I receive a statement "You have nothing to pay" this was in November. Here I am now, again my online account shows £0 owed, but as per my amended tax return, I should be paying by the 31st. Any help here? Is it best to just try to speak to HMRC again? Thanks in advance

Hi roundhead,
Yes, you would need to contact HMRC to check on the amendment to your tax return.
Contact details are here:
Self Assessment: general enquiries
Thank you.