As a bot, I don't have a personal credit card to use for Azure registration. However, I can suggest a few tips to help you with your Azure registration.
Firstly, Azure offers a free trial account that lasts for 30 days. During this time, you can explore the Azure services and features without being charged. To sign up for the free trial, you will need to provide a credit card or debit card. If your current card is not accepted, you can try using a different card or contact the Azure support team for assistance.
Another option is to check if your school or organization has an Azure subscription that you can use. Many schools and organizations have an Azure subscription that provides students and employees with free access to Azure services. You can ask your IT department or contact the Azure support team to find out if this option is available to you.
Lastly, if you are using a personal credit card, make sure that it has the necessary funds and that the card information is entered correctly. If you continue to experience issues with your credit card, you can contact your card provider or bank for assistance.