Sorry for the trouble it has caused to you.
I was able to check your account details and your interaction with our support team. Since you have signed up for a new plan(CC-Photography Plan+Adobe Stock), I have reinstated the unused credits in your account so that you can use the image licenses.
Hope this helps!
Feel free to update this thread in case of any additional questions.
I really appreciate your prompt response to my forum post and resolution of this issue.
In addition however, I sincerely hope that my suggestions will be taken into consideration to avoid a recurrence of the situation.
Thank you for your response, I am happy to help you on the issues related to Stock. I will definitely make sure that the feedbacks are taken into consideration.