What credit card are you using? I worked previously in a position where I had to process credit cards on a daily basis and I can tell you that some credit cards can be quite tempermental with online billing. Calling the phone number on the back of your credit card and speaking to the CSR should help as they can clear any kinds of fraud flags that might be being triggered by your "unusual purchase." (I'm assuming you don't spend online for cell service frequently). They can also enact other flags for you that tells the acceptance algorythm to relax for a little while allowing the payment to process. Once the process has been done, the algorythm should in the future accept it as not being fraudulent. (It might happen again next time, but after that it should be good.)
That's all assuming it is the "handshake" that is failing and not that your card does not support online transactions of this nature (like some debit cards will not process unless you have an online account associated with it.)
Edit: Another issue I just thought of could be is if you are using any kind of VPN it could be flagging it as fraudulent as well. Ex. You are paying for a Canadian service while you are in "Japan" or some other place. Plus some browser extensions (incognito mode would fix that) and security tools (like Malwarebytes) can cause communication issues.
@tamsin wrote:
Hi,
I'm trying to activate my SIM but can't get the form to process my credit card. I've checked my credit card and i'm below my limit and I am entering my address information exactly as it is registered with the bank.
Help?
