Landline activation

My mom got Xfinity cable TV and internet in early February after moving into a new apartment. She decided this month that she needs a landline. I ordered one on Monday, 3/21, and was bounced around to 4 different less-than-stellar Xfinity reps on an insanely long 1 hour and 36 minute phone call.

When I returned her Xfinity modem for her old apartment to an Xfinity store this morning, an Xfinity rep there said that it could take up to 5 days for the landline to activate. Five days?? That's hard for me to believe -- it's 2022. 

Has anyone else had similar experiences with Xfinity landline activations?