. . "mation about service costs, such as: ???How much does it cost to add a service???? ???How much is a service???? and ???How much does it cost to get a new service???? At step 42, a caller is advanced to a post-purchase menu node upon selection of a DTMF tone of 5 or recognition of an utterance associated with a request for post-purchase information, such as: ???I want to change a service.??? ???Who" . .