Strong evidence but HMCTS may claim administrative error.
HMCTS deleted the Applicant's set-aside application from the CE-File system, then told him any High Court filings would be struck out. Created a procedural impossibility: could not challenge the transfer in either court.
What the opponent will argue, and why they are wrong.
Application was not properly filed or was a duplicate.
Application was filed through the CE-File system. a CE-File administrator deleted it. No notification was given. Applicant was simultaneously told anything filed in the High Court would be 'struck out'. This created a procedural impossibility: cannot challenge in HC (threat) or CC (deleted).
The applicant could have refiled or escalated through official channels.
What 'official channels'? The CE-File system is the official channel. When the official channel deletes your application and the alternative court threatens to strike out any filing, there are no channels left. This is the very closed loop that violates Article 6. The applicant raised it immediately and was ignored.
Transfer date and service confirmation date are both documented. Transfer preceded service by 15 days.
Evidence that application existed then disappeared from CE-File.
Fallback: G-A3 achieves same result (High Court restoration) via different route.
Independence: Partially dependent on other grounds succeeding.