SLA Configuration for different priority

Hello guys

Can anybody help me to know how can achieve next SLA configuration. I need to configure a Service profile 7*24 for priority Very High and Service Profile 5*8 for other priorities.

I tried this creating both service profile. I created 2 service products and add both to the service contract. But when I open a corporate message error is showed.

If I select one of them and after that I need to change priority, Time are not calculated. correctly.

Please help me to know if it is possible. If yes, how it must be configured.

Thanks in advance.

Best regards

Jorge Luis Marquez