Also illegal in Denmark. You need a NemKonto by law. Also making cash payments over 15000 is illegal since 2024.
So you can't make a large purchase without a bank transfer.
If you don't care about the possessions you could remove it quickly. The problem is that when you try to clean it, they want to evaluate every single item for if it should stay or not.
Throwing it all in garbage bags and then in the bin takes much shorter amount of time.