Bookings > Settings > Diagnostic fee, switch on Charge a diagnostic fee and enter the Amount. Full steps below.
Where: Set up in Bookings > Settings > Diagnostic fee. Managed on each booking's Payment tab.
Plans: Starter and above
Steps
Bookings > Settings > Diagnostic fee, switch on Charge a diagnostic fee and enter the Amount.
Choose How customers pay and When is it collected?. For manual payment fill in Manual payment instructions and optionally Require a payment screenshot.
Optionally write a Refund policy (shown to customers) and choose Credit this fee toward the final job.
Click Save.
Rules and limits
One active invoice per booking. To make a new one, cancel or delete the existing invoice first (deleting asks for confirmation, with a stronger warning if paid).
Fee credit is used once, on the first invoice of the job, and never more than that invoice. At Convert to estimate the contractor can choose to deduct it or keep the estimate separate (fee not shown).
What this cannot do
WinkScope does not pay out or fund refunds; card refunds come from the contractor's connected Stripe account.
Still stuck?
If a step does not match what you see on screen, stop there and open a ticket from Support > My Tickets with a screenshot of that step. The team will look at the account directly.