Issue: both tax rates are being applied

I have 2 tax rates set up (21% and 6%) and using the data-item-taxes attribute so the client can select a tax rate via the cms (Kirby). However, when checking out the cart I can clearly see both tax rates being applied, what am I doing wrong? Can someone from support reach out?
Sample page at

which should have 21% vat added.

Can anyone from support get in touch please, this problem persists no matter what settings or changes I try.

@erwinheiser Can you please send us an email to support@snipcart.com with the steps to reproduce the issue along with the account email please?

Mail was sent to support@snipcart.com with the necessary data and credentials.