I had the same issue for about a week or so. I tried contacting apple support through the "email" option in the contact us page but there was no response from them. Then after a while I was able to request a call back from apple and only then did they ask me more details for verifying my identity and organization. I submitted the documents but then was again in the endless waiting loop. Then after a few days I had to request a call back from them again, told them I submitted all the documents and that's when I was able to proceed to making the payment for the program. You can find the phone/call option here Contact us. Although this call button keeps appearing and disappearing at very random times. So i'd suggest you to keep looking at it from time to time.