That's awesome. Anything more than about a half diopter and you'll probably not get away with that in glasses. Contacts can go a little higher. I'm personally astigmatism sensitive, so I have to be spot on for degree and diopter.
To be legally above board, an online provide must attempt to confirm the Rx you enter is correct AND still valid. But few if any do because its a race to the bottom on quality and price. At Topology Eyewear, we spare no expense to ensure you get the best custom frames (like a custom suit) AND the best optics money can buy. We take 100% compensated Rx very seriously!
We're already aware you're enthusiastic about your business. Kindly leave the self-endorsement out of every comment.