It's been a few years since I've had to call upon the collective knowledge of the forum.

 

I'm about to apply for my daughter's first British passport and only have access to my Kasikoen web card (virtual credit card) I have used it hundreds of time for various online purchases but was wondering if anyone has recent experience in using it for passport fee payment?

 

TIA

I used mine some years ago and it worked fine where my standard debit card didn't, that was when the applications were processed in Hong Kong as opposed to London. 

I used my Siam atm card and it went through without a hitch. Yours should, as well.

 

I would notify KS that there will be an international charge coming from the UK and the amount, just to be safe.