Well if that happened you wait for the 3 month contract on the 2nd Be account to pass and just cancel. In the meantime you at least have an (inferior) load balanced multi-threaded connection.
But in my case I have a good mate who works for a hosting company and works with Linux/networking in a data centre for a living. He can MLPPP my line in his sleep so WIN!
not just that, £10.50pm rental for 18 months