How can I provide the required bank statement when my bank (First Direct) cannot offer a stamped statement?

Further Document Request London:

While most of the documents they have requested are easy to fulfill the one i'm having trouble with is: 'Please visit your UK/Ireland local Bank Branch get the print out of your Personal bank statements with the official stamp and minimum closing balance of 11,000 GBP ,balance within last 30 days and should be hold at least 10 days'

I have the required amount and have held it for many months so that requirement is fine. Only problem is my bank is First Direct in the UK, a digital only bank with no physical bank. I have spoke to customer support and they say they cant provide a stamped bank statement, I even called HSBC the parent company and they said they cant fulfill this either.

I originally uploaded the bank statements as pdfs that I downloaded from my online banking. I have asked AI and its told me to get a paper statement mailed from First Direct and then scan this and attatch a short cover letter explaining the situation, but I can't see why that would be any different to the original pdf I downloaded from my online banking. Any advice would be greatly appreciated 😃