There is a long-standing forum rule that is particularly important in the Marketplace. That rule is the 72-hour waiting period between bumping any kind of thread whether it's FS, FT, WTB, etc. The reason for the rule is to give everyone a fair chance at getting their thread noticed. Bumping before the 72 hours is up will get your thread locked.
A bumping feature is one of the new functions that has been implemented in the new forum. Looking at the image below, you'll see a new circled link called "Bump topic" just above the dark blue border.That feature has been set to 3 days (72 hours), and if it does not appear in the original message to your thread, do not bump your thread as the 72 hours is not up.
Once that feature does appear, just click on the link to bump the thread and start the next 72 hour waiting period. Thanks for your cooperation.