The organisation points to its own research, which claims additional charges on credit card debt accumulated by travelling Brits this year will amount to a full £258 million.
And this prediction is all the more noteworthy given that over a third (34 per cent) of credit card holders are unaware of the excess charges they stand to face when using their cards overseas, Post Office maintains.
Head of communications for Post Office Claire Oldstein said: “We are now four times more likely to spend on plastic abroad than ten years ago.
“It’s shocking not only to see how much people are being penalised to use their cards on holiday, but how few are aware of this.”
Bank of England statistics put overall credit card debt figures for the UK at £54.9 billion in December of last year.