You might be able to buy points with robux lol

I went in the game, and buying points doesn’t exists!

Maybe roblox will add it in the future

Honestly, it's your problem since the only two ways of getting points is either prediction and voting, and looking from what you wrote, you only did votes. Both of them ended, so it's impossible to get any more points.

Aw man, I only need a little more points (just 10 more) to get the last accessory, which costs 750 points.