Accruing late payment interest for first payment on account due 31 Jan 2023

Filed my 22-23 self assessment last week, just checked it and ive accrued interest retrospectively for July And January 23? is this correct?

Hi Tom Owen,
If you had previously asked for your payments on account to be reduced and this was done incorrectly based on the tax now due, yes you will be charged interest as the original due dates for payment apply.
Payments on account are based on the tax income submitted on your SelfAssessment tax return. 
Please see: 
Understand your Self Assessment tax bill
Thank you.