Enquiry preparation
Vacuum cleaner: keep a short fault diary
For a vacuum cleaner enquiry: Record a few ordinary occurrences with the programme and stage. Do not deliberately recreate smoke, tripping, leakage near electricity or uncontrolled movement for a video.
Model and requested work checked before an appointment is agreed.

Apply this to your product
Identify the corded, cordless or robot product and explain which function changed. Ask about the actual model and requested work before assuming it can be accepted.
Why the detail helps
The vacuum cleaner reference, fitting and observation allow a more specific discussion. They do not establish a failed part or guarantee a repair.
Before an appointment is agreed
Confirm suitable work, proposed charges and access with the team. An enquiry notebook is preparation, not a reserved visit.