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A second Form 4A lands while your tribunal challenge is still undecided: the tenant walkthrough (RRA, 2026)

A renter does everything right - spots the procedural problem in a Form 4A, applies to the First-tier Tribunal in time, and waits for a hearing. Then, while that application is still undecided, a second Form 4A arrives. The renter who withdraws the live application because 'there's a new notice now' has thrown away a challenge that was already running. The renter who quietly starts paying the second figure has, by conduct, agreed a rent they never had to. This walkthrough covers why landlords serve a second notice mid-challenge, the 12-month gap rule and how the pending application bears on it, the three-category decision tree, what to do and what not to do, the holding letter to the landlord, and the letter to the tribunal.