You have no feedback, and you offered a review to someone registered in Aug with no feedback as well. How come?
I don't know much about review copy. Today I posted my thread and 2 persons asked me for review copy, one seoindias and second one stock_post and as I am new to this so I thought it will better to give 2-5 review copies to fellow forum members but I don't know who are they and why they asked
That is because you are very new in here and you have zero feedback about the service. Even you may not cheat or intend to scam anyone but they are still not sure if your service may be efficient or well delivered. In other word you have not enough trust to convince prospect customer. Most of seller in the similar situation do offers a review copy as a trial in some special condition such as special discount. A limited of review copies will be given to the chosen customers and in return they have to come back and post an honest feedback about your service. If the job went smooth you will get more and more orders. I would recommend you to give review copy to prospect customers based on their reputation such as "30+ 100% positive iTrader" or "high reputation" (see their green) or any well known members. The feedback from this kind of buyer are more authority and given more chance to convert another prospect customers.