Did I get bumped to the back of the list?

There's no order or priority to the list. Arborists don't deliver to sites based on how long they have been waiting. Arborists choose sites based on who is closest to them, whether or not they're willing to accept logs, and whether or not they're willing to pay for the delivery. They may also look at previous delivery attempts you've had, and comments that previous arborists have made about your site.