When I create a new credit memo for shipping costs the shipping taxes are calculated twice:
Notice: Before, I created a credit memo for the product price to have a better overview what happens with the shipping refund.
4,95 are the shipping costs (incl. taxes). The problem is, that magento adds the taxes (0,79) again.
Here is a full example:
This is an offline example, but when I try to refund payments made with RatePay or PayPal, they receive a refund request 0,79€ higher than the price paid before.
Has anybody experienced something like that before and has an idea what is happening here? Where should I start to look for the root of this problem? Maybe I can fix the problem in a submodule.
The price calculation works anywhere else correctly.