how i can get zp

If you hover over the "Get ZP" in the top-right, there's a part which says "Get free zp".
Click on that, and it will take you to the surveys/offers page, but what you see there will depend on what third-parties are advertising.

Honestly the amount of ZP you get from there is awful nowadays, but that's all down to the companies offering surveys being cheap

You can get free zp by doing surveys on the top "Get Free ZP", don't believe in anything else claiming "free zp", it's a scam.

I also got free ZP by doing surveys on the top "Get Free ZP".