Why is there a separate fuel surcharge on our October 2026 service invoice?
We have a long-term rental for a construction site with one standard unit and one ADA-compliant unit. The monthly rental rate was quoted with weekly service included, and the invoice usually just shows the flat fee. This October 2026 invoice has a new line item for a fuel surcharge. The quote did not mention any variable charges, and the rental company has truck access to our site on a paved street. What drives a fuel surcharge, and can they add it without notice? Should the monthly rate cover all service costs?