Am I being unreasonable here? It's beginning to feel like I was scammed when I bought the Siege X Beta.

I bought the siege x beta when I saw that early purchases got somewhere around 2000-3000 credits, plus a few skins for certain operators. The purchase was around 5-6000 jpy if I remember correctly. However, I never received the credits, and I think I didn't even receive the skins but I don't care as much about that. The credits essentially meant the Beta was half price which was a reasonable deal I thought for helping improve what could be a decent side game to normal Rainbow. I asked support why I didn't receive the credits and if there was something wrong, their response was basically 'this is a known issue, we're trying to fix it', this was two months ago, and they closed that case twice without resolving it. I have now requested a refund, the pictures show that interaction up until today.

My question is am I being unreasonable? Was I scammed? Is this something they're allowed to do by law?

More so, has anybody else encountered this issue? It's difficult to find much related to it on google.