How to add bank card to AXS?

Could you please provide me with a step-by-step guide on how to add a bank card to AXS? I'm interested in linking my bank account to the platform for easier transactions. Could you elaborate on the necessary steps involved, including any security measures I should take? Additionally, I'd like to know if there are any fees associated with adding a bank card and if there are any limits on the transactions I can make using this method. Finally, could you also clarify if the process is straightforward and user-friendly, or if there are any complexities I should be aware of? Thank you for your assistance.