This sounds almost exactly like the issue I used to have.
I tried to pay Avangate directly from my bank account and would get messages similar to what you are getting.
My issue was my American bank did not like a foreign company (Avangate) taking money out of my account directly. And this despite multiple phone calls to my bank.
Had to set up a PayPal account (which took about 3 minutes literally) and problem solved.
EDIT: The "not verified" orders will be cancelled eventually as it means the payment did not go through - at least in my case they did.
I contacted my card provider and they indicated something similar, but gave me a work around that worked at work using firefox not explorer.
For any new purchases i think I will setup a PayPal account as well.
Thanks for letting me know I am not the only one having problems.