credit card

Hi, I am an android app developer. I want to signup for Google playstore developers' account to submit my app. But when I try to pay the registration fees for it, it says "Invalid credit card". I am using my SBI Visa Debit card. How do I go around this problem? Which card do Google play store...

Hi guys, I was trying to buy something from internet using my friend's credit card. He was with me when I'm ordering it on the website. At first it has asked for CVV no. after entering the 16-digit CC no and its expiry. I've entered the 3-digit no. in the back of card near his signature as...