How do i donate £50?

The Donate page doesn’t let me select the amount and currency though i selected "Or enter a custom amount and currency"and then clicked on pay by credit card and did the captcha. Instead it automatically says $25. How do i donate £50?

How do i donate £50?
The Donate page doesn’t let me select the amount and currency though i selected "Or enter a custom amount and currency"and then clicked on pay by credit card and did the captcha. Instead it automatically says $25. How do i donate £50? This is not based on the usefulness of of LibreOffice but on a wish to support open software

https://donate.libreoffice.org/

1- select (enter a custom amount and currency
(only those marked with * are also available via PayPal))
2- put 50 in the blank space
3- choose the currency
4- check (im not a robot)
5- donate methode (via paypal or CC)