You mentioned that you go on Facebook and so on. I don't know whether you know it, Mr. Yeates, but the number of characters that can be used to write a message on Twitter is relatively limited. It's extremely small. I don't know what kind of messages you'll be able to send people. I don't know whether you're aware of the number of characters you can use to write a message on Twitter, but note that, to inform a client, the message could be short. Don't you think so? That's my first point.
Second, for those who don't have access to the Internet—and that was mentioned earlier—do you guarantee that you'll nevertheless send them a letter as part of the service after six months? Will those people nevertheless receive a letter?