University cannot purchase credits

I am trying to run an experiment through Pavlovia (build on psychopy). I recently moved to a new university and my previous one had no issues purchasing credits. However, my new university’s credit card gets denied when attempting to purchase credits on Pavlovia. The payroll says this might be due to my state restricting purchases from Pavlovia, but they are unaware of the reasons. Does anyone know why this might be and how I can go about purchasing credits on Pavlovia through a University’s credit card?

Thank you!