I ordered a laptop from Media Markt and accidentally made the delivery address and billing address on my friend! Can I just have my billing address changed at Media Markt or do I have to cancel my order? Delivery address should stay that way. Since I often had problems with my neighbors and my packages disappeared without a trace.
The Mediamarkt service will be able to tell you more than we can. If you react quickly, they can certainly adjust that. If not, your idea of canceling and reordering is not wrong. It always works.
For later warranty or guarantee transactions, or proof of ownership to authorities, it is always better to give the invoice to the actual owner.
At the bottom you will find the contact information. I recommend the phone, it is the fastest and is best suited for this type of clarification:
https://faq.mediamarkt.de/