Your statement is partially true. CERTAIN fruit, plants, vegetables are restricted, but not all. Citrus fruit, apples from Washington, etc., are among some of the prohibited fruit. We cross into Oregon and back into CA on a frequent basis (including today). Border stations will give you a list of prohibited items if you ask.Well, most of the time importing plants species from other country is consider a thread of invasive plants getting release into the wild so they just politely destroy your plants
*Note even California don't allow fruit or any plants cross their border from any private party, you must throw away every fruits that you purchased outside California at the check point even that fruit was raise in same country, it's just outside California
Hope you get a refund. My understanding is that PayPal doesn't automatically back all payments made through them. eBay purchases are protected, but not necessarily purchases from other sites.