Welcome to FT.

In the light that you a dealing with WizzAir (which are notoriously bad at dealing with claims) and jurisdictions such a Armenia and Abu Dhabi maybe you should consider to let it go/move on? You risk spending endless time on this but getting nowhere. From your description it sounds like this will easily be matter of one person's word against another's which means your claim will fail. Before you do anything further, please consider if it is really worth the money, time, energy/emotions etc. Yes, you are upset by the way you were treated, but what started it? (because you tried to sneak oversized hand luggage onboard without paying for it, and once confronted at the gate you refused to pay? - just my guess).