My parent both are on 4g plans with public mobile. They have been using the services for almost 2 years. To answer your question regarding points, i would like to summarize what i understand about the point rewards here:
1/ They offer some percent return based on how much you spend every month on your plan. Ex: you get 1.70 dollars that you can redeem towards your bill if you are on $34 plan.
2/ You can give out your referral code so other can apply it when they first register their service. You will have 1 point from each referral. Save the point and redeem them later is up to you.
3/ They also offer loyalty point. My parent basically have 1 dollar off that is automatically apply to their plan every month after using their service for the whole first year. In 3 months, they will reach the second year goal and will earn another dollar. Public mobile has a cap on this loyalty rewards but i really dont remember. You can always use the chatbot or contact customer service for accurate information about this.
4/ You can also reply to other question on this community page to earn some rewards every month.
Hope that help
