I can see 247 items in your completed items so you will be able to find your items there or by looking at your unsold items.
As you are selling dozens of brand new items of clothing, you do need to register as a business seller and, in fairness to your buyers and their legal consumer rights, you should be accepting returns for any reason.
https://www.ebay.co.uk/sellercentre/selling/create-ebay-business-account
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)