[Dyne]

Thank you for your replies. I guess the best way would be to make a return back to them right?

It depends if it was sold and shipped by Amazon or an external seller.
If it was an external/third party seller it is very unlikely.
With Amazon, you could FTID it or LIT method it if you have access to an insider.

Both items were sold and shipped by Amazon. I was thinking to FTID or LIT but the waiting time is 30+ days and I'm getting no label from Amazon at all. I heard in the past they used to give a UPS pick up label but not for this order

They should absolutely give you a UPS label or a return label if you initiate the return through the Amazon portal. Even flagged accounts that have done prior refunds get this. If the system doesnt automatically generate one, try contacting customer service.

FTID is your best bet for the return center.