**TL;DR:**
**No, you don't have to do anything right now.** However, if you want to keep a fixed price for your electricity, you should log in to your account or the app before **28 November 2026** and choose a new tariff (like "Fixed Saver 27"). If you do nothing, you will automatically switch to a more expensive variable tariff on 31 December 2026.

**Key Details:**
*   **Current Plan:** Fixed Saver 24 (ends 31 Dec 2026).
*   **Deadline:** If you don't reply by **28 Nov 2026**, you get moved to Standard Variable (34.1p/kWh + a £61.2/day standing charge).
*   **Your Choice:** You can pick a new plan anytime via the online account or app.