Don't do it at all.
If you did cancel your cards, call your bank within 24 hours and have them stop the payment. Don't answer their phone calls because they will try to keep your money. Don't active your account let the card company deal with them. They are out of the country and unlicensed. The brokers are all the same people with different US names and they won't help you. The chat lines aren't helpful and there are no managers to talk to. Once your money is gone your broker isn't employed with the company anymore and you get reassigned to one that wants you to reinvest more money. The software is an autotrading software that will trade your money til its gone and they will not tell you. Their terms and conditions are crazy and the withdrawal process is impossible. Don't send any of your information to them and don't get personal. Please be careful and protect yourselves.