Seller say 'You are saying that buyer should check the package and do not accept if tampered'.
This statement is incorrect because:
1. When we get package at home usually someone at home receives the package and they can not check the content.
2. How could buyer know whether package is sealed by seller or courier? Do you use any sealed envelop/package which can be verified by buyer?
If seller use simple flexi tapes to seal the package, same can be done by courier people and cannot be validated until we open complete box and test the product.
eBay should have some sort of protection for packing and sealing the package so that buyer can validate it.