The Lifetime cable network's battle with Echostar's DISH satellite service has grown more volatile as the two companies go into a second week of negotiations while the women's channel remains blocked from DISH customers. DISH responded to a letter to leading women's groups from Lifetime, insisting that the dispute was "about economics, not women's issues." At the same time, Lifetime expanded an advertising campaign urging customers of the satellite company to "Drop DISH" so that they could resume watching on conventional cable systems. DISH contends that Lifetime is asking for a 74-percent hike in its fee; Lifetime has countered that it amounts to only pennies per customer.