Probably bought a pair for a 2-wheeled bike and Ebay collects sales tax on this end even for items from overseas.
To the thread starter - read this https://www.sheldonbrown.com/tire-sizing.html
If you had looked at the sidewall of the old tire you would have seen something like 26 X 1.375 embossed on the tire. Lots of us have made this mistake before we realized you can't translate decimal tire size to fractional inch and get the same tire. Found that out with my first recumbent when I tried to buy a rear tire at my local WalMart. It didn't fit even though it said 20" on the tire. Fortunately I was only out a couple of bucks.

You could always put it for sale on Craigslist or Facebook and give somebody a decent price for a brand new tire.