Got the exact issue now myself.. for 4 days ago i had a monthly sub to pay.. An hour or so I started a Paid character transfer to a new server so I could join the "Gimp" Eu multiboxing guild with my team. After I had transferred my 3rd toon i got the same problem. "Payment Rejected etc..". Tried different cards i have but still rejected.. Sent a webform to blizz the other day to fix this since the problem seems to be on their side. Gonna try to make a call to them tomorrow if i still havent gotten a reply from them about the problem. My druid healer and last shaman is stuck between the realms now poor howsters.