The feud has fuelled a costly showdown between two tech titans.
The tech giant says it hopes to slowly expand the service as the demand for ultra-fast deliveries grows.
Meta said Ofcom’s calculations were “disproportionate”; the regulator said it would defend its position.
The platform said it would remove end-to-end encrypted messages, a major U‑turn by parent company Meta.
While only rolled out to some users, the feature’s bizarre AI-generated descriptions were shared widely.