...
We do NOT charge transaction fees for the first 10 subscription orders during 14-day free trial in any pricing plan as well as test orders. You may have already used several of the 10 subscription orders that are free of transaction fees and decided to change your pricing plan. In this case, we do NOT reset the subscription order number to zero but continue counting.
If you change your pricing plan, transaction fees for the billing period will be calculated by the formula:
...