I know this is kind of an older comment, but just in case you haven’t gotten it resolved yet, just email the address that they have in the email/website. They have always answered me promptly whenever I email them with a question or concern. They should be able to fix the problem for you!! I love Pinecone too; definitely worth trying to have them fix it.
Some pay with points that are redeemable for cash or goods and typically you must rack up a bunch to redeem them for anything of significance. Others may give you a gift card, discount, or another token of appreciation for participating. Many others pay nothing or only offer sweepstakes entries for completing screening surveys to determine your eligibility for other, paid surveys. A few don't pay much of anything, unless you recruit others, as in a pyramid scheme.