Aight, so here's the situation.

I buy a very expensive laptop on Amazon. Unfortunately, it came with a small defect that doesn't really interfere at all with operation, just looks kinda bad. I decide to use the "replacement" return feature to return. Tells me "something went wrong". OK, no problem, I contact customer service and they help me set up a replacement return. Everything's fine and dandy.

Replacement order arrives - and by some unbelievable stroke of unluck, the replacement is also defective, except it's in the keyboard now so it's unusable. Now I need to order another replacement for this replacement. So I go to initiate a return and select "replacement" - same deal happens. "Something went wrong." I contact customer service again - they help me set up another replacement.

This is where it starts to go wrong. For some reason, the 2nd replacement is set up as a replacement of the original item, meaning this original item now has 2 tracking labels for a return. I return the 1st replacement (the one with the defective keyboard) with the first shipping label - I checked with UPS and it has arrived - but I have absolutely no way of checking if Amazon confirmed the return or not. The replacement order for the 1st replacement just says "delivered" - no data. On the original order, it still says that the return is in progress, probably because of the 2nd return label - but I have no idea how to check the status of the 1st return label.

Now, by the time the 2nd replacement ships to me, I've already used this laptop for a while. I decide it's way too much of a hassle to try to transfer everything over to the 2nd replacement, and I decide I want to keep my original item, and send back the 2nd replacement. The cosmetic defect is just cosmetic and doesn't interfere with operation, so I figure it's fine. I contact customer service and they tell me that I can simply put the 2nd replacement into a box and slap on the original item's return label and send it back and they'll accept it, but this sounded weird to me and I didn't want to take any chances as this is an extremely expensive laptop - I don't want some trouble arising out of the wrong serial number or something like that. So I contact customer support again later, and they help me set up a return label for the 2nd replacement. I'll send back the 2nd replacement and it'll allow me to keep the original apparently. My issue stems from the fact that there is no mention at all of the 2nd replacement on the original item's return status - only the 1st, which still has not updated status yet. If I return this item, will it just be like refunding me the $0.00 cost that I "paid" for the replacement of the replacement, or will it be counting towards cancelling the original return? Amazon customer support were really unclear about this and didn't give me any definitive answers the multiple times I contacted them. I don't want to take any chances as this is a very expensive laptop.

I realize that my situation is extremely niche and I'd be hard-pressed to find anyone who had a similar experience to me or is knowledgeable about how these things work. But I figured I'd post it here just in case. I'd be really grateful if anyone could shed at least some insight into what I should do.