Older player cards market issue

Brother, again, please just take a look, it literally takes seconds.. I took 2 screen shots for you, so you won't jave to log into the game. Both taken today, with EURO24 cards and Balon d'Or25 cards mixed together, it's easy to see my point, they're all OVR 99 base cards.

Please understand we gamers are customers, spending time on your game, watching ads and spending real money. 

I sold today a 99 OVR base (grey) card of newer event with 19.000.000 coins -10% market tax. If I try to sell today a same OVR card released 5-6 months ago, prices will be over 10 times that or more. What floors and ceilings are we talking about here? Those summer cards are tradable, they were sold in packs for real money as tradable, a few months pass and they become untradable because of imaginary floors and ceilings? Were we informed before spending of those future blocks on the market at high prices so the cards won't get demanded past a certain amount of time? That's 100% ilegal to do and the customer suport is inexistent on this matter.

Please guide me on how I can reach a superior, or a real person customer suport if you don't want to elevate your next answer towards a real and legal solution..

Best regards 

Marius