Here is credit card settlement.
1. Name, mail address, and confirmation of credit card at expiration date
2 .The customer who fails though the above-mentioned confirmation was done must confirm the telephone number.
In an overseas customer, there is a customer with short telephone number,
and is a customer for it to cause the settlement failure.
For that case, please apply "0" to the head of the telephone number.
The settlement because there is a customer who succeeds when 0 is added and it makes it to 10 or11 digits.
Example
your telephon number
[ 12345678 ]
add "0" to your telephon number
It changes to 10 or11 digits.
[ 00012345678 ]
My best regards.