Ring on any working day and reach someone who can actually book you; the form works at every hour and keeps your place. Both roads lead to the same thing — a window worth planning a day around.
"The fridge has been warming since Tuesday, freezer fine" tells the van what to carry; "it's broken" leaves it guessing.
It hides inside the door frame, behind a kick panel or beneath a lid — and reading it out, though optional, predicts a one-visit repair better than anything else you could offer.
Basement stairs, a tight alley, a freight elevator, a steep drive — one sentence at booking and the visit is planned right the first time.
A minute with the form, and on working days the confirming ring tends to come back within the hour.