First of all, if you use credit cards to buy Bitcoins, you need to have certain repayment ability. The Bitcoin market is still in a depressed state. You must ensure that you can return your credit card if you do not need to use your Bitcoin. We do not know when Bitcoin will only warm up.
No I think there are a lot of scam in the market searching for newbies to fool them. It would be better if you are going to ask for some of your friends if do they know someone that sells bitcoin rather than to buy it in an online shop. You can even get a discount or you can also post it to the Services Thread that you're finding someone who is selling bitcoin because you wanted to buy some, something like that.