You have waited more than enough imo.
To be polite I wld msg her today and say as you haven't heard from her and items have still not been picked up, you are refunding the item and relisting them. If she STILL wants the item, then she needs to pick it up by 4pm (or whatever suits you hehe) today.
Gives her one last chance and you have given her ample time to pick it up.

Good luck!