Coupon Code Uploading

Hello all,

I’ve been searching around for two days to find an answer, I hope someone can give me some guidance.

I’m looking for a plugin(s) which will allow my users to submit a txt file of one-time-use coupon codes (I can do the upload with gravity forms — but I’m not sure what to do with the data after).

Then, visitors who visit that user’s post can “claim” one of the codes.

Is this possible?

Thanks in advance, any help would be greatly appreciated!