Giving out information without premission.

My husband got promotional airtime from RMCS which changed his cell number from prepaid to contract. This was given from Edgars to RMCS. We are trying to cancel this as he does not want this and did not give premission for a contract either. Edgars say they cant help to get this cancelled, yet it is because of them we are stuck in this situation, which is costing me money trying to get this contract cancelled. They should be held liable seeing they started this.