Selling too much on eBay???

Hey guys. I've been selling on my eBay account for about two years now, and I recently started selling more items.
I just sold out on one of my items and was trying to relist it but got this message:

"We?ve noticed that you have been selling more on eBay. We want to ensure you continue to increase your sales successfully. Before listing any additional items on eBay, please contact us to discuss your selling plans and goals."

Has anyone gone through this?

guess they just want to make sure that you have a proper source of goods and that the goods are legit and not replicas or refurbished.