Presearch users can collect 0.25 PRE tokens per search, up to a max of 8 PRE tokens per day between 12:00 (midnight) and 12:00 midnight UTC.
To check to see if you've reached your daily max of 8 PRE tokens (32 searches), click on your token count (top-right corner or Presearch.org home page), you will see a page listing your transactions - if you see at least 32 searches today (UTC), you have reached your max of 8 tokens until tomorrow (UTC).
If you haven't reached the daily limit, there could be two other reasons your PRE reward tokens are not increasing:
1) Your account is restricted. If your reward balance is red in the top right corner on Presearch.org and shows 'restricted', please send an email to email@example.com..
2) You are not using Dsearch or the Presearch Engine as your search provider. Searches outside our ecosystem (E.g. Google or DuckDuckGo) are not rewarded.