Be careful with bit.ac. I heard that their users cant withdraw their coins from the site and their support is not answering any emails. Im not saying they are but that might a start of an exit scam.
I lived that problem a month ago. They were sending me 2FA code mails 3-4 days late. So i changed to another firm. That's why i do not want to leave anything of mine behind, in their possession. So if there is a user of bit ac who'd like to do & help me out with this exchange of some satoshi to some doge, i'll be glad.