Base on my understanding of PayIvy, you need to create separate products for each one of those codes in order for you to sell since their basically different from each one. As long as what your selling is legit and not claimed by you from hacking or such cases then you shouldn't have any problem to sell on this forum as well. Here's a set of rules for this forum:
https://bitcointalk.org/index.php?topic=703657.0