We are updated from S21 to Flip 4. Both phones sent back, i still have the proof from their signature. Today realised on my account there is payment to Samsung of £490. This is the trade in price. No any communication, no e-mail why or what happened. I will call them tomorrow as it's too late now, but anyone in a similar situation?
I would think that your trade I device hasn't reached them in their time frame. If you have your post office receipt I would take pictures of it as it will have the date of postage and tracking number if you used a Samsung returns pack.
I sent my trade in on 6th September and its still showing as being at the post office.