False marketing

Last month I received a promotional sis from multichoice to reconnect my service at R199 for 3 months. I took up the offer paid the fee and reconnected the service. Month end of March received a bill of R456, I phone the call centre only to be told that in order to receive the promotion I must pay this R456 but I had no payments due after reconnecting my service. This is definitely unacceptable false marketing and a *******.