DELL service is pathetic be warned maybe HP do it better ?

Frustrating Support services !!! Buy HP ! I am really at my wits end - I have a next business day support contract for my laptop for a reason , as an IT engineer it’s critical to my line of work .

Dell support services took 3 days to source a motherboard and now when I have it in writing via email that an engineer has received the part and will be onsite today to resolve my issue - it’s 5pm no word from anybody just an email confirming he is going to replace the part and meet me today .

I phoned support turns out the engineer might have started Christmas a bit early and will see me on Monday !!???

Still no call to tell me that it is rescheduled for Monday nor an email and the manager has disappeared and not responding to my calls voicemails or emails ???? Can you believe it ?? Now I am without a pc to support my customers until Monday - unfortunately I run a 24/7 business but dell have closed shop for the holidays ?