It depends on the policies of your credit card company. Some credit card companies allow customers to purchase cryptocurrencies with their credit cards, while others do not.
If your credit card company allows you to use your credit card to purchase cryptocurrencies, you may be able to use it to buy crypto on Netcoins, as long as Netcoins accepts credit card payments.
However, it's worth noting that purchasing cryptocurrencies with a credit card can be risky as it can result in high fees and interest charges. Additionally, cryptocurrency prices can be volatile, which means that the value of your investment could decrease rapidly, leaving you with high levels of credit card debt.
Before using your credit card to buy crypto on Netcoins or any other platform, it's important to research the risks and fees associated with the purchase, and to ensure that you have a solid understanding of how cryptocurrencies work.