Not with a watch @Shinzon but I have returned a Samsung Note 20 Ultra 5G to Samsung UK which was collected by DpD
I took time and date stamped pictures of the phone, and included a hand written note with the phone advising of the issues I'd experienced, along with the Returns Note that came originally with the phone which has some tick boxes on it so the Returns Department knows why the item has been returned.
Once they receive your parcel the refund shouldn't take too long.
As for re purchasing I'd say this experience shouldn't put you off from buying direct from Samsung.
As with all purchases things can occasionally go wrong.
If you have a Samsung Experience Store then consider going there to buy as then you can open the box up in-house to check the watch over.
I wish you all the best with this.
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "