How do I ensure that I do not lose files on my Skydrive?

Can anyone help I seem to have hit a perfect storm. Just as my Skydrive storage came up for renewal my bank discovered attempted fraud on my credit card cancelled my existing credit cards and issued me with new cards. As a result my renewal charge failed. I received an email from Microsoft informing me and asking me to provide valid card details. I attempted to do this but I have just changed employer and used my old work email for my account security. I have to change email this now, which I can do but as a security measure Microsoft will not let change this email until the middle of next month. As a result I cannot change my credit card details. This date is long after my Skydrive renewal charge is due. Is there anyway that I can ensure I do not lose data on my Skydrive until this is resolved? There seems to be no way to contact Microsoft directly to resolve this.