After 5th rejection of my app, I reply to the reviewer. I explained the issue and submit for review again. After on day, the app went for review for 12 hours then finally get approved. I have no idea what was the cause of error. Even though I didn't make a major changes of the source code because everything in my In-App purchase code was clear and straight forward.
The app gets approved finally after almost 10 days from my account renewal date. I have no idea if account renewal process is related to the issue.