When the part does not arrive
The car is stripped, the customer expected it back today, and the part is somewhere between a supplier and a van. It is nobody in your workshop’s fault and it is entirely your problem, because you are the only person the customer can ring.
Why the call gets put off
Because there is no good news in it and no firm answer to give, so it is easy to wait until there is — and the waiting is what does the damage. The customer finds out at half five when they turn up expecting their car, which converts a supply problem into a service failure. Told at eleven, most people are mildly annoyed and rearrange. Told on arrival, they are furious and they tell people.
What to say when you do not know either
The part has not arrived. Not "there has been a slight delay" — people hear the hedge and assume worse.
Expected tomorrow, chasing the supplier this afternoon, or genuinely unknown. Any of those beats vagueness.
A named time is the entire point. "I will ring you by four either way" turns an open-ended wait into a manageable one.
A courtesy car, a lift, reassembling it so they can drive it and come back. Ask rather than assume which they need.
The second call matters more than the first
Making the promised follow-up — especially when there is still no news — is what separates a garage people return to from one they endure. A customer rung at four to be told the part is still not here has been treated well; one who has to chase you has learned something about how you operate that no amount of good workmanship undoes.
Meanwhile the phone is still ringing
The awkward truth is that these are the days the workshop is least able to answer calls, because everyone is dealing with the consequences. New enquiries arrive into that, get nothing, and go elsewhere — so a supply problem quietly costs you next week’s work as well as this week’s goodwill. Whatever else is going on, the line has to keep working.
Frequently asked
As soon as you know, not when you have a firm answer. Told at eleven most people rearrange; told at half five on arrival, a supply problem has become a service failure.
Say plainly that the part has not come, say what you do know, and name a time you will make contact again — "I will ring you by four either way".
A courtesy car, a lift, or reassembling it so they can drive it and return. Ask which they need rather than assuming.
The promised follow-up, especially when there is still no news. A customer who has to chase you has learned something no amount of good workmanship undoes.