HI, Welcome to eBay. First thing, you dont get in every open thread you see around community to put forward your problem. IF you do it Its called spamming and no one likes it.
For your problem you need not worry a lot. There is a thing "item not significantly as described" which you can get inside "report a problem" once you are inside the item page of the one you purchased.
Go to it, write your all case detail and send to seller. ask him for a refund. You can also ask him to refund the extra shipping you had to pay. I suppose you have the copy of the bill on which the actual shipping charges are mentioned. If the difference is huge as in your case you can also ask eBay to take action against the seller.
Send a mail with copy of the bill(courier) and your item number to inrswebhelp@ebay.com . They will take appropriate action.. As excessive shipping charges can come under FVF cirumvention.( Seller does not have to pay final value fees for shipping charges)
But before doing all this I request you to contact the seller if he is ready for a refund.
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Linus Studios