Monkie Business

I have a Bangkok Bank Be1st Smart Mastercard Debit card ( chip and Pin ) and I have recently used that debit card number to apply for a British passport renewal . I have just received this message from the UK passport office where my passport is currently at ......[ We have been unable to process payment for £118.51 ] and then his message ....**Please note that payment is taken in the UK, so we would advise you to check with your card provider that the card you intend to pay with is valid for international transactions** In the past I have used the same Bangkok Bank Be1st Smart Mastercard Debit card to pay for items on Ebay based in the UK . And my monthly private health insurance payment is taken from the same Bangkok Bank Be1st Smart Mastercard Debit card without a problem from the UK company. I telephoned the Bangkok Bank help line and was told to visit the Bangkok Bank branch where the Be1st Smart Mastercard Debit card was originally issued . As my Bangkok Bank branch is a 180 km round trip from my home I thought before I set out and go to my Bangkok Bank branch to ask questions as to why my Be1st Smart Mastercard Debit could not be used by the UK passport office. I thought I would ask others here for advice or suggestions on this situation. Thanks