As an AWS user, it's amazing to see a status page show an actual status. Curious how many of these posts there would be if their status pages were accurate.
Load balancers often being a single point of failure in even fairly large org's, this is especially painful.
Looks like you need to request an SLA credit manually: https://support.google.com/cloud/contact/cloud_platform_sla
Details: https://cloud.google.com/compute/sla