Question about Brother MFC-L8390CDW

This is a CH model with cashback: https://www.galaxus.ch/de/s1/product/brother-mfc-l8390cdw-laser-farbe-drucker-39048533?openBlocks=incentive and this is an EU model without: https://www.galaxus.ch/de/s1/product/brother-mfc-l8390cdw-laser-farbe-drucker-39997788. They are technically identical. Regarding the cashback promotion, you can view the instructions and link further down under the "Cashback" section under the "Price development" point. Here is the copied text: How to get your cashback: You purchase one of the selected models during the promotional period. Register your device online at the following link no later than 30 days after the end of the promotion. Upload your receipt and a picture of the type plate in the registration portal. You will receive your cashback within four weeks at the latest.