You can't sue Oasis please, People are lucky they even allow refunds for months of playing.

Have you ever heard of something called RNG. If you don't understand this game is almost pure RNG. Learn it, its not the fault of the company if you don't know it.

RNG means that its a random chance within certain limits / parameters, the problem is that for most things there seems to be a fixed low chance of getting it, and that, sir, is not RNG.

RNG is a fixed % of something you can get. For example
If you have a 1% change to get S. Itachi frags every time you pull and its a 40% change to get AO or kakashi or w.e ninja you want. Out of 1000 pulls or spins or whatever you are more likly to get AO or whatever ninja at 40% than you are to get S. Itachi frags which is 1%. That is what rng is out of a single event you get this % to get this thing. If you happen to get the thing that is 30 or 40% and never get the 1% than so be it. Of course the % are rigged for events why wouldn't they be they want money.