In BugsysClub: you will be asked for your credit card details every time you make a deposit.

In PokerSchoolOnline: To update your credit card, go to the website at www.pokerschoolonline.com and Sign-In. Your Member page appears. In the lower right of the page, click on the title 'Update Information'. Click on 'Update Credit Card Information' on the page that next appears. Enter your new card information, then click the Update button to save it.