This been happening to me... i have two real working solutions.
1) Setup 1-Click-Buy option (works everytime)
2) Logoff... go back to the prodcut page, add to the cart, check-out and then login... you will be able to check out.
It is still a pain but i dont know what to do... eveytime i go to the shoping cart it throws out errors - i tried on different computers, devices, OS - everthing....
This been happening to me... i have two real working solutions.
1) Setup 1-Click-Buy option (works everytime)
2) Logoff... go back to the prodcut page, add to the cart, check-out and then login... you will be able to check out.
It is still a pain but i dont know what to do... eveytime i go to the shoping cart it throws out errors - i tried on different computers, devices, OS - everthing....