Here are a few tips for filling out offers:
1. Read the offer carefully so you know exactly what to do to get the points.
2. Complete offer with your real information. (no they won't spam you with mail or give your information to third parties)
3. After you finish an offer wait about 5 minutes to let all the information go through (just leave your windows and tabs open)
4. Now delete your computer cookies and do this before every offer. It is recommended to use CCleaner to delete your cookies as it can save you a lot of time and also deletes some "super cookies" that your average browser may not delete.
Why delete cookies? This is because sometimes new offers might not credit because they can read your old cookies information and think that you have done their offer already.
Also remember that even though most of the time you'll get the points 5-10 minutes after completing the offer, some may take up to a day or more (depending on the offer). So don't worry if you don't see the points right away, just keep going and they will appear if you've done everything correctly.