Actually, this goes for all customer service. I know that you're frustrated that you're not allowed to as much easy telemarketing anymore. The no-call lists and such have really put a krimp in calling your customers and getting them to sign up for services that cost them more money that they probably don't need.
But when I call your customer service hotline to deal with an issue, your customer service person should not then turn around and try to sell me something after dealing with the issue. It's annoying.
That is all.