Customer promotion phone call

Received a call today promoting other Xfinity services as a "values customer", which is fine. I politely let the caller know that I am happy with my Xfinity internet but not interested in any other services at this time. They persisted, and I repeated my self. After the 3rd time I simply disconnected the call. Please advise your marketing team to respect the customer and not argue with them. That is a turn off and annoying.