They didn't intend to give me two products, and the month of prime is worthless if they don't actually have 2-day shipping. The response I want on the customer service end is for them to stop using their shitty AMZL carrier and deliver reliably like they used to for the last 10 years. It would also be nice if Amazon didn't hide their customer service options so I didn't have to waste a bunch of time finding it every time there's a problem.

You can ask them to make a note on your account to not use their in-house delivery.

I've been contacting them a lot lately, and they haven't made me aware of that option. Thanks for letting me know!

If the same issues keep showing up they probably want a fix to the actual problem. And really, having two show up at some random date is not going to be helpful if you miss a kids birthday etc.

The question "what do you want their customer service to do better" misses the point: the person doesn't want to have to call customer service in the first place to get a replacement product that shouldn't have gone missing in the first place.