I paid an item online and should ship using UPS Ground, but the seller shipped using FedEx Home (read below)?

I purchased an item online using EBay. Upon checkout I was asked to pay for the item (of course) and then, shipping costs. Based on their product description and their one-and-only-shipping service offered, they only use UPS Ground.

Three days later, I was wondering why the seller shipped using FEDEX Home Delivery. As I made some research and compared the two, I got scammed a couple of dollars with FedEx Home Delivery cheaper by 1-2 dollars!

I plan to file a Paypal Dispute under the category of "Other: Shipping Cost Issues", and if they don't explain properly, I will escalate a claim for this matter.

If I escalate this to a claim, does this mean I still need to return the whole package with my purchased item (which of course, would cost me an extra for the return shipping, if ever)?

What should I do? I just got scammed!

This is a shipping cost issue and is a valid dispute category under Paypal (which is the payment method I used).
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question have you asked the seller why they went with with fedex instead
of UPS? communication is the name of the game here
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All u r going to get for your trouble is negative feedback from the seller. bite the bullet and let it go. the harm to your ebay reputation is not worth $2. you did not really get scammed, if they sent it ups you would have paid for it anyway right. you are not losing anything. your still getting your item for the agreed upon price.
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So...the seller did some research and found out one method was a little cheaper than the other and because he decided to save a bit of money you feel scammed? Maybe he should have just shipped UPS and had everyone eat the extra $1.

Ignore it..it's only $1-2.