This is a prepaid Mastercard for traveling. I took one and didnt use it and then got an email offering a bonus of £18 if I added £500 to my card.
The rate of exchange is very good and can be used for all the main currencies including euro and Dollars.
It isn't a credit card. It is a prepaid card meaning you can only spend what you have put on the card.
You can use it in the UK like any other card for transactions. There is no charge for withdrawing sterling off your card.
may be worth a look for holiday funds and some free cash.