Hi lastplace.. is it the otterbox. Shipping shows USPS mail not UPS.
Its been a month and seller is not responding. Go to the resolution center in your PayPal account and open an item not received dispute. Escalate to a claim.
Can close if item arrives before refund or repay if after.
Claims must be filed within 45 days and best to file no later than day 43 from payment date.
http://pages.ebay.ca/help/buy/paypal-buyer-protection.html