The accessories were the same as in the picture. I can't say anything about the cash back yet, but I suspect that this might have something to do with the promotion (at that time the device was 149.- / corresponds to a cash back of 30.-).

The purchase amount on the invoice is relevant. So the cashback amount for the purchase amount of 199.- is paid back. That would be 40.-. For the cashback campaign, you have to go to the Braun website, where the amount you receive is then displayed.
However, I find it questionable to sell your data to a global company for a few francs. I would therefore rather wait for the next promotion and simply profit from it. Just my two cents.