<p>Booking estimates displayed at checkout cover standard service scope for the selected category. Complex jobs requiring inspection may incur a diagnostic fee disclosed before provider dispatch.</p><div class="table-responsive mb-3"><table class="table table-bordered table-sm"><thead class="table-light"><tr><th>Charge Type</th><th>When Applied</th><th>Customer Approval Required</th></tr></thead><tbody><tr><td>Booking estimate</td><td>At checkout</td><td>Confirmed at booking</td></tr><tr><td>Diagnostic fee</td><td>Before on-site inspection</td><td>Disclosed at booking</td></tr><tr><td>Parts and materials</td><td>During service</td><td>Yes, via app or chat</td></tr><tr><td>Scope expansion</td><td>When issue exceeds estimate</td><td>Yes, before additional work</td></tr><tr><td>Emergency surcharge</td><td>Same-day urgent bookings</td><td>Disclosed at booking</td></tr></tbody></table></div>