Yeah sadly never finishing take home work with her is common. I got a badge at EQLA that was at con and it was perfect. So I commed her at FC2020 for a take home badge and I got my badge after poking on Telegram, Twitter, and finally contacting another artist she works with. It wasn't even close to what I asked for (I asked for an anthro badge with a cave painting theme and got a chibi feral badge in a standard laying pose) but I figured I wasn't gonna get my money's worth so I just took it.
Sorry you got ripped off too.