I have a user with the following problem when trying

I have a user with the following problem when trying to upgrade. I cannot duplicate this in any browser with a test account, but she is continuing to be unable to upgrade:

Am using Windows Vista, with Firefox browser version 28.0, cleared cookies, ran Norton Antivirus, re-logged into HON with a clean slate,

My user name is all lower case with no special characters, began upgrade process by choosing upgrade from free to Premium membership, and taken to:

http://hebrewnationonline.com/upgrade/
Clicked on “sign-up” under Choose to Move to Premium and taken here:
http://hebrewnationonline.com/hnoregister/?action=registeruser&subscription=2&from_subscription=3
Clicked “pay with credit card” and am returned in a circle back to:
https://hebrewnationonline.com/upgrade/
Clicked on sign-up under Choose to Move to Premium and again taken here:
https://hebrewnationonline.com/hnoregister/?action=registeruser&subscription=2&from_subscription=3
Clicked on pay with credit card and again, again returned to:
https://hebrewnationonline.com/upgrade/