Core:
Uptime Monitoring
Website Backups
Plugin/Theme/System Updates (WordPress)
Security Protection
General Advice

Fixes:
Correct any loading issues
Malware Removal

Content Basic:
Website Text Changes
Image Updates

Content Advanced:
Page Layout Changes
New Page Additions

Optimsation:
Optimised Images
Website Load Time (PageSpeed) Optimisation

ECommerce:
Payment Gateway Support
Configuration of Modules/Checkout steps

Premium Reactivity:
VIP SLA’s on fixes