I tried to buy some bitcoins from a popular/trusted website
the payments had charged from my card , and my bank support told me : the purchase done successfully
but the website system released this message : failed to charge the card
the website support told me that they did not take any payments and their explanation
Visa is a middle man , it takes the payments and check some conditions
if the conditions as expected , it will send the payments for them
if not , it return the payments for me in a few days
2 days passed and I did not take back my money
I don't want to mention the website name , I'll do it only in case I really stolen
if you can choose trusted site then it's OK. After that you worry about your card information then you can use trusted payment method like as Paypal, Neteller to upload your money from your card after that you can buy it using your balance from any exchanger site. If you don't have exchanger web link then you can choose from bestchage site. There you can see many trusted and reputed site.