So disappointed! The showerhead arrived missing the main mounting part, the one that attaches to the water pipe and has the magnetic mount for the handheld. So, completely unusable. 
That’s no good. Reach out to Woot! Customer Service. To speed things up, let them know if you prefer a return/refund or a replacement (if possible).
Please allow 24-48h for them to respond.
Self-Return: Items without Li-Ion batteries can be self-returned within 30 days. Go to your Order Details to get started. The return label will be emailed from UPS.
Browser: Use the Woot! Customer Service form.
Woot! App: Choose Account from the bottom navigation and then Support.
Note: Woot! Customer Service replies go to the email address on your Woot! account, not your Amazon login email if used/different.