Boost Mobile promotes bill shrinkage with a giant

Boost Mobile customers have a new reason to pay their bills on time. In a new ad campaign that features a 20-foot tall giant, the all-you-can-eat subsidiary of Sprint Nextel Corp. (S) is promoting its $50 plan called Monthly Unlimited with Shrinkage.
Boost Mobile’s customers on the plan will see their bills shrink by $5 a month each time they make six on-time payments. Customers who successfully pay their bills on time for 18 months in a row will eventually see their bill go down to $35 a month, which is the lowest it can get under the plan.
The new ad will be begin airing today on 18 networks and cable TV stations. A second spot called “Ice Skater” will begin airing later this month.