A: Thanks for telling us the details. Each code basically adds additional lifetime credits to make the total. If you activate another code in your account, you will become a tier-2 user. The tier-2 has 220k total lifetime credits available. You have already received 100k lifetime credits. So, the second code will basically add 120k additional lifetime credits to your account. Similarly, the 3rd code will add 140k additional lifetime credits. Let us know if you have any questions. Have a great day.