Hi Moshiur, credits are usually updated after 24-48 hours when you create a new trip (travel story). I will suggest you wait for the credits to be added in your Tripoto account. Let me know if you still face any issue.
Dear fellow traveler, generally it takes 2-3 days to get your published on tripoto forum and get your credits. You'll get an email from tripoto when your trip is published and how much amount of credits you awarded for your blog.