Cado Xorbun

i have been trying to buy lindens for the passed three days and have been unable to. I tried on different machines, different internet, deleting and readding my card except now it will not let me add my card to my account. i get this error every time: A temporary error occurred. We apologize for the inconvenience. Please try again in a few minutes. Please go back to the cashier and try again. Please contact Second Life Support if you see this error more than once. my card is not expired and i do have money in my account. please help -_-