The original announcement was on their Facebook page, and links to https://www.getyourfuckingmoneyback.com/
Note that they didn't raise their own prices (they absorbed 100% of the tariffs on products they make), so if you bought directly from them or through their Amazon listing, you didn't overpay and don't need a refund. If you bought from a retailer like Wal-Mart or Target, they'll start by refunding people who have a receipt, and then if there is money left over they'll try to refund anyone else who thinks they overpaid.

That seems to be correct!