Many people give up on their SE once a company asks them to send the product back. In reality, there's more than one way to deal with this request, but one of the simplest and most popular is known as boxing.
The complexity of using dry ice goes beyond the scope of this post, as that requires careful consideration and calculation of shipment time, the weight of dry ice to use, and the sublimation time of that quantity. I will not be touching on that, rather giving a general method of how to use dry ice to spoof the weight of an item in transit.
Here we go:
Credit goes to a guy named critikal