The public has been warned to make sure they are paying for their parking via official means.
It comes as QR codes have appeared in a number of car parks across Wales, taking people to a fake website.
Yori Evans, 19, was caught out in the car park outside Pembrokeshire County Council’s offices in Haverfordwest.
“I scanned the QR code and then put my details in and paid, but it didn’t work correctly so I downloaded the app and paid there,” he told Sky News.
“The following morning £60 was taken out of my account to STRNGRBILL.COM. Then I called the bank to see what the payment was for. I’m still waiting to be able to apply for a refund.
“I cancelled my card and the day after they tried to take £57.99 out of my account but luckily the card was cancelled.”
Mr Evans said he was “confused” when the money left his account.
“My advice would be not to trust anything unless you know it’s official like the app and that everyone educates themselves on how to recognise scams like this,” he added.
In a statement, Pembrokeshire County Council said it does not use QR codes for payment at its car parks.
It asked anyone who finds a QR code in council car parks to report it to them and encouraged customers to download the PayByPhone app used by the council.
Keep up with all the latest news from the UK and around the world by following Sky News
Read more from Sky News:
Baby skeleton thought to be more than 100 years old found
Freddie Flintoff struggled with anxiety after Tope Gear crash
Be the first to get Breaking News
Install the Sky News app for free
Conwy County Borough Council warned residents about a similar scam on Monday.
The codes, which are used to steal payment information, were found on parking meters at The Parade, Llandudno and Colwyn Bay Promenade at the weekend.
The council said the scam also puts motorists at risk as they may not know they have not paid for their ticket via official channels.
Anyone who may have been affected has been urged to contact their bank to stop any further payments.