hi,
is someone accept credit card as payment option for trading, I will like to buy bitcoin
Never do that if you don't want to lose a lot of fees. I tried to transact via Paypal and Visa to see how much the transaction fee and price of bitcoin differed from exchanges, one surprise was that the price of Bitcoin was more than $ 500. holy ..., I could not believe my eyes and I would recommend that you do not use credit cards. If possible, you should try trading at Huobi OTC, it will help you trade P2P and very quickly. The price will not be much different from the general price and extremely low fee.
Companies which allow you to buy via paypal increase their fees to the level covering chargebacks which are pretty easy to succeed for selling digital goods (you can see number of complaints regarding world of warcraft or cs:go accounts) because the seller is unable to give physical proof of shipment of goods.