Ofcom finds error meant 140,000 departing customers paid £2.4m more than they should have
The mobile operator O2 has been fined £10.5m for overcharging 140,000 customers several million pounds as a result of billing errors that persisted for almost a decade.
The telecoms regulator, Ofcom, said the fine – which was reduced from £15m because of O2’s cooperation with its investigation, related to errors in the final bills received by customers leaving the operator.
