An organization is using a public cloud provider for IaaS instances. The organization has developed and deployed a web application within these instances. The organization wishes to formalize an SLA that specifies that the public cloud provider will:
Respond to infrastructure outages within 4 hours
✑ Offer multiple availability zones
✑ Ensure application up-time of 99.9%
✑ Provide monthly billing reports
Why would the public cloud provider disagree with these terms?