Letawera alternatives

Say you need an errand done, like picking up a package from somewhere and dropping it off somewhere else, sometime this week. This is surprisingly hard to do on TaskRabbit: 1. You can't put up your task and get offers. You must first select a Rabbit and wait for them to reply. 2. Rabbits have *never* replied to me. The system has told me, 8 times so far, that "The selected Rabbit is not available, please pick someone else". Why don't you just broadcast my task and see who's available? 3. You're forced to pick a time, which I guess is the reason why many Rabbits weren't available. Thing is, I don't care. I just want the task done between Monday and Friday.