How long should I wait?

Hello,

How long should I wait for my trader to go green before requesting a refund?

For ex If we setup the trade on 1/1, I completed my part in a few days and waiting for the trader to do his part.

2 weeks later, he signed up but still didn't go green. He said he is waiting to get credit.

So how long should I wait for him to get credit 'til I finally request for a refund for my green? 1 month? 2 months? 3 months? Assuming he still replied me with the reason that he was still waiting for credit.

Thank you for helping!

I wait at least a month but it can be more if they stay in good contact...