[Wimzaa]

Should I push the DNA in a few days or would this be greedy?

Don't, there's a high chance of raising suspicion.

It's very unlikely that two orders from the same company In such a short period of time, were unsuccessfully delivered.

Sorry, I should have elaborated a little. The original SE was a warranty claim where I instructed the company I had destroyed goods as it posed a hazard. Company sent a replacement item and onward all details the same as OP.
So there's been no lost item but a destroyed one that was replaced and now I wonder whether or not I should sontinue with DNA for two bites of the same apple.