Binance UK - 8% card fee ?!

When trying to purchase cryptos via card (GBP), for example ADA, I am shown two radically different prices:

- Pay with Card: 0.95 GBP = 1 ADA

- Pay with Cash Balance: 0.88 GBP = 1 ADA

Why is it 8% more expensive to pay with card (faster payments are still suspended, so paying with cash isn't an option) ?!

(For context, the current ADA price on Binance is shown as approx. 0.88 GBP.)

I thought card fees were 2%, not 8%?

Thanks.