I cant see ads in brave

Hello i use brave on android but i receive only one or two ads per day. I am from greece and everything looks fine in brave and dont use vpn. I have unistalled and reinstall braave but no ads appears can anybody help?

Probably not many ads in region is the culprit.
You can check active campaigns in your region at
https://sampson.codes/brave/ads/my_region/

Also do check if you have Brave news, Notification and Sponsored images turned on and maximum ads limit is turned to 10 per day.