I had the same issue, other posts here under "older treos" suggested that we call Sprint here are some numbers that may come in handy
Retention - Negotiate a better plan / price to stay with Sprint PCS
866-207-7913

Customer Service - Straight to Rep.
800-658-7564
877-822-7505

Executive Services - For when things get really messed up
866-519-5698
888-347-8988
817-215-3070