Sir why do you go after such low deals but buy good quality stuff and expect good quality service and goods, its the same principal with the offline market too,
If you buy secondhand goods once you step outside the secondhand vendors shop the obligation ends there and if you knew the phone was three years old within a week should have initiated item not as described case returned the goods and got your refunds,
As for the imei case even genuine imported phones of motorola and various apple iphones had gone dead after ruling of the genuine imei implementation by the government,
For the clip you could initiate eBay guarantee case and get full refunds, believe me the kind of luxuries and also safety available on eBay is nowhere available in offline market, try purchase this same items offline and see , its my advice as a friend use eBay rules to help you from such situations.
eBay guarantee program, item not as described claim and various other claims will help you out get the best deals, and also please check seller history and other specifications , do a bit of research before going for such elcheapo deals, buy quality spend a bit more and be assured of the BEST luxuries which eBay offers 🙂 Dont loose heart its only that fourth is a charm for you 😉 Be rest assured and use eBay rules and policies to get the best Deals available.
Happy Shopping my friend wish to happy buying journey ahead.