Waitlist question

To make a long story short, I’ve lived in my new home for a week and have had two failed installations, one self service, the other a technician. 

I was told by support today that I need to schedule and pay for a professional install, which at this point is fine if it gets it turned on, but the soonest they had was a week from now, making two weeks without internet as a remote employee. 

My question is this: can I sign up for entire days on the waitlist? I will be at home anyway, and signing up for one time slot per day really seems like it’s more of a random chance than a waitlist.

Thanks for any help!