If your credit card is declined there may be a few reasons: the card has no funds available, you entered the wrong CSV security code, the card is expired, you entered the wrong billing information, the card does not allow internet purchases (card not present purchases) etc. In any event by calling your issuing bank they can tell you why the cards declining.
Absolutely! Our Secure Software (SSL) is the industry standard and among the best software available today for secure commerce transactions. It encrypts your credit card number so that it cannot be read as the information traveIs over the Internet.
There are no limitations for devices that connected to one App, but you do need consider that how many Wi-Fi devices your Wi-Fi router can handle. For a usual Wi-Fi router, it is about 15 to 25 Wi-Fi devices. Some advanced router can connect hundreds of Wi-Fi devices though.