I have so much fury for Prometric. They're accountable to nobody.
I recently cancelled a test. They managed to charge me the $32 refund fee immediately. Then it took them 6 weeks to issue the rest of the refund. I called them along the way and they said they had no record of the cancellation. Then they emailed me to say they found it and that I'd just have to wait longer. When I asked how long they said, "You have been informed you have to wait longer, so you'll just have to wait" (to that effect).
I could go further but I'll just stop there. I hate them so much.