You are asking member like yourself here not ebay staff.

ebay do not open and resela anything as they never get them.

If the item was from OS then it may have been customs that opened it and resealed it.

You need to contact the seller about the problem and if you paid with paypal then you only have 45 days to open a dispute for item not as described to get your money back.

DO NOT let it reach the 45 days to open the dispute as 40 days is ample time and too protect yourself.