Time limit to use credits for resellers?

[koze]

Is any time limit to use credits for resellers?
I know that if you buy let's say 2 credits they going to be activated at the time of purchase, but what about a bulk?

How to become reseller? How I can get reseller login etc?

Thanks

[dh8389]

You need to buy at least 8 codes to become a reseller. Then you assign each donation and the 365 days will start from each code assigned.

Buying two codes I believe will start them immediately.