Ask HN: Does anyone know the requirements for Amazon Concierge Service?

I got an email from Amazon's Concierge service about a package that I was receiving. I then asked what the requirements were for Amazon concierge service and the sent me the following email response:

There's no exact requirements to receiving this service.

Amazon has always been customer conscious and strives to provide the customer with the best buying experience possible. The concierge team provides an extra level of service to our highly valued customers. Every day the team reviews orders placed and reaches out to customers like yourself.

Thanks again for choosing Amazon.com as your trusted place to shop.