Tire storage – Rims discarded after a certain time

Hello dear community, for the current occasion I would like to address you. The following situation: I own a Jeep Wrangler TJ which I would like to sell at the moment. The car currently drives on all-year tyres with a second set of rims. I stored the original set of rims at Euromaster, where also the set of rims with the all-year tyres was bought. Now two years later I wanted to pick up the original set of rims because I wanted to sell it with the vehicle. “We’re sorry, but your tires have been disposed of and are no longer in the warehouse because they haven’t been picked up for a long time.” But I paid for the storage…. That can’t be that Euromaster just disposes of my property! I’m just animally angry right now! Does any of you know what this looks like legally? Thank you! Michi