In some (rare) cases, there is a difference between the amount passed in the query string and the amount displayed in the donation form. This does neither depend on a specific banner nor on the skin used for displaying the form.
This also happens when POSTing from the donation form, which results in a lower amount stored into the database and displayed on the confirmation page.
Examples:
https://spenden.wikimedia.de/donation/new?skin=10h16&amountGiven=8.70&zahlweise=BEZ&periode=0
https://spenden.wikimedia.de/donation/new?skin=cat17&amountGiven=9.20
AC:
- The page displays the passed amount exactly as it was passed with the query string
- There is no difference between the given amount and the amount stored in the database