See who's calling

Indian call centre, claiming to sell you the "best plan ever" on behalf of Carphone Warehouse. I got them stuck on a question they couldn't answer which a genuine firm would have known the answer to (tethering limit on an unlimited plan) at which point I was transferred to a supervisor, she also couldn't answer the question and in the end told me F*** off, and hung up, which was pleasant. I doubt I will hear from them again.