The email for eBay is bot automated, so it is useless
It is not about being savvy as much as it is reading the selling basics if you don't know, or if it has been a while since you sold as things are always changing
eBay Community (as it says at the top) is the member to member forum
So if you don't know, or are unsure of something , it is far better to ask here
People here (unlike eBay CS staff actually have experience using eBay)
CS staff type from pre-written scripts and often give incorrect 'advice'
Hopefully you have at least completed sign up to Managed Payments
And be aware the buyer can easily open and win an item not received dispute since you have no tracking and no proof of delivery
