If a customer would like DSL in Embarq territory they only have to switch one DSL line to Embarq not all lines

Embarq (one of the service areas U4COM does business) is currently instructing customers if they want DSL they must switch all their lines back to Embarq not just the one line. I want to remind customers and all U4 staff, Embarq is not legally allowed to make statements like 'if a customer would like to have DSL they must have that service from Embarq'. Always ask for DSL to be installed on a fax line. Verizon and AT&T areas allow for us to keep DSL services.