problem with eating credits

The problem with credits being consumed is that despite entering a new prompt, it keeps generating the same images and consuming credits for each identical image. I enter new prompts to edit the image, and Firefly keeps generating the same image and charging 40 credits for each generated image, even though they are identical. This is a major problem because I had to buy another credit pack, and FireFly is consuming them by not generating new images or following my instructions.