I noticed a bug in ImageAIStudio that allows the same promo code to be applied repeatedly. As a result, I was able to accumulate nearly 50,000 credits.
Since the process requires re-entering the promo code each time to apply the free extension, I created a simple Tampermonkey script to automate the repetition. I used AI assistance to help finalize the automatic submission logic, which I wasn’t able to complete on my own.
TemperMonkey Script… - (Please ensure that Tampermonkey is installed in your browser before installing and using the script.)