Evidence and uncertainty
ISPreview is the direct source for the 9 March report and the correct retail-over-network direction. Virgin Media O2's NetCo and Substantial Group announcements support its wholesale strategy and prospective scale. The CMA record and VMO2 annual report establish the 2025 VodafoneThree context.
None of those sources proves that a fixed-wholesale contract was signed. No source reviewed here supplies price, term, coverage, exclusivity, migration, launch or measured consumer-impact data. Future reporting must keep those unknowns explicit.