Contacting Uber in the UK in 2026 is most efficiently done through the "Help" section of the Uber app, which provides 24/7 support for both riders and drivers. Within the app, you can report specific issues such as a lost item, a fare discrepancy, or a safety concern. For more urgent matters, Uber provides a 24/7 phone support line for riders in the UK; the primary number is 0808 189 7190, which can also be accessed via the "Call Support" button in the app's help menu. If you are a driver, there is a dedicated support line and "Greenlight Hubs" in major cities for in-person assistance. Additionally, Uber is active on social media, and you can often get a quick response by tweeting at @UberSupportUK. For non-urgent inquiries, you can also use the web-based support portal at help.uber.com. It is worth noting that for serious safety emergencies, you should always contact local emergency services (999) first rather than waiting for a response from the app's support team.