I am on Mastercard and setup my recurring 6 month sub a few days ago without issue. I set up via the Mog station for the sub, entered my card info and they did a test billing for $1 (a common practice to ensure card is live and they can access it).
Does your CC company or Credit card have any restrictions or security measures you are unaware of? Many CC companies wil refuse a transaction if the system sees a purchase trying to be made outside your usual spending pattern or area. I had this when travelling in Ohio last year. had to call my CC company and OK that it was in fact me that was attempting to use my CC in Ohio. Rather embarrassing when in a gas station trying to pay for fuel.
call your CC company and have them verify the $1 or 1 euro test payment went through without issues and the payment got to the company trying to ask for it.
Also the Visa electron is not a typical Credit card and is more of a visa Debit card where you must have funds actually in your account to process the purchase..so make sure you have the funds being asked for and that they do not have some extra layer of security preventing the transaction from completing.
from wikipediahttp://en.wikipedia.org/wiki/Visa_ElectronIn countries that have stricter criteria for issuing credit cards Visa Electron has become popular with younger people and students. As each transaction requires funds to be checked accounts cannot be overdrawn. Therefore banks will issue a Visa Electron card to customers who may not qualify for credit. In some cases, especially in the UK, rather than issuing Electron to customers who should not be allowed to go overdrawn, banks will issue what is ostensibly a full Visa Debit card that authorises online for every transaction, in exactly the same manner as Electron. This can cause these cards to be declined where an actual Visa Debit card would be accepted, for example at petrol pumps or train stations.
i am also on Google Chrome and windows 7 64 bit Home premium on all my systems i use to access the game and forums and account management.