Maybe the site is causing a complaint because your customer`s marketing manager accidentally botched the messages. Are you responsible? Can this complaint be made by you? One of the main causes of a breach of contract should be when a client has commissioned another agency to do exactly the same work without first terminating your agreement. Well known as “Scope Creep”, this happens when a client asks you for a little extra work here and a little improvement. It doesn`t seem like much when it first happens, but before you know it, the client gets you to do work outside your domain for free.. . . .