The workload of development tasks varies on a monthly basis, and so does the credit consumption. Under normal circumstances, the Pro version suffices for our needs. However, there are a few months when credits run short. We suggest adding an option to purchase credits in one-time increments of 500 or 1000 that can be used across months. This way, we can resolve the credit shortage issue in a given month by purchasing an additional 1000 credits as needed.
Great suggestion, we are already working on this feature and it will be launched soon 
Thank you very much for your prompt response! We look forward to the early launch of this feature, which will effectively resolve the issue of monthly credit fluctuations and further improve our collaboration efficiency.
Okay, my friend. Thank you for suggestion