According to Central Payroll Bureau (CPB)
, if you have a problem getting the deduction cancelled, you may send a signed and dated letter to CPB to cancel the whole deduction. The CPB requires that you provide the following information in your letter: Social Security Number; six digit Agency Number; the name of the deduction as stated on the earnings statement; and the amount to be cancelled. The CPB will send a copy of the cancellation letter to the appropriate union. You should mail your request to: Central Payroll Bureau, P. O. Box 2396, Annapolis, MD 21404. Attention – Deduction Management Supervisor.