Brazil’s consumer protection agency Procon has ordered the country’s four largest mobile operators – Vivo Participacoes, TIM Brasil, Telecom Americas (Claro) and Oi SA – to stop selling any more new mobile SIMs in the southern Rio Grande do Sul state capital Porto Alegre, amid concerns over poor service quality. BNAmericas reports that the indefinite suspension has been forced by what Procon describes as: ‘Blind spots [in coverage] throughout Porto Alegre. The consumer ends up buying a line or a 3G service that does not work in some regions where they live.’ Agency director Flavia Pereira went on to say ‘there is lack of quality service and companies don’t give adequate information. If there are blind spots, it must be clear to consumers when they are buying services.’ The official also called on the big four to properly compensate their customers for service interruptions. The cellcos have ten days to reply to Procon’s decision.