what is credit card when should don't use it

what is credit card?

if you ask me this question i answer you that credit card is a small card which used for shopping purpose there is many kind of cards like visa ,master .many banks are providing this card after using this you will pay your credit card bills with in selected time .

best credit card

you should do not use it
If you want any thing that very important and essential for you then buy if not do not buy anything.
my brothers if you have money in your acount then buy anything you want if not don't use credit card spending over money is not a good habit.

what is the base of credit card?
credit card is based on interest and it is against of islamic finance .