"In general, [Sprint-Nextel] has struggled since its Nextel acquisition to retain customers. In the first quarter it lost 220,000 monthly subscribers."
Gee, I wonder why...? Do you suppose it could be because ever since they were bought out by Sprint, Nextel's service (and customer service) have sucked? I have to admit, though, this is an inspired way to get a customer to stop bugging you about repeated billing errors that you can't or won't fix — just cancel their service for calling you to fix the errors.