Hello and welcome to justanswer, My name is ***** ***** i will be assistign you today,
I'm sorry about the issue, If your Surface screen is cracked, you can open a service order and send it in for repair.
Please Go to "Send my Surface in for service" page to open a service order online. Then get your Surface ready for service : http://www.microsoft.com/surface/en-us/support/service-order
For more info about the service and repair process please visit this page : http://www.microsoft.com/surface/en-us/support/warranty-service-and-recovery/how-do-i-get-my-surface-serviced?os=windows-10
hope this help