Also to answer the other question in your post the auto finalize period is 17 days from being marked in transit, it is always advisable to click on resolve and request an extension if that time is getting close and just taking the order into the resolution center extends by 5 days. Once in the resolution center the order will not auto finalize either but you will need to read up on how escrow and the resolution center works by reading the SR wiki, everything is covered there.