ADT not keeping up to written promise

A sales person in the employ of ADT, with the name of Conrad Geyser, visited our premises and a contract was signed. It was mentioned that we will be allowed to buy two additional remotes and that he will arrange for a technician to visit us and reset the remotes. The remotes were bought and we have tried to arrange for a technician to call as from February 2015, to date, to reset the two additional remotes. When we contacted the West Rand branch we were told that this can not be done and a quote, to the amount of R1 400-00, was given to us for this service. The Sandton Call Centre was contacted twice and the first time the lady told me that a senior person will contact us. Nearly 3 weeks have passed without somebody contacting us. I have contacted the Sandton branch today again and after explaining our predicament, the lady again told us that we will have to pay for this service. When I demanded to speak to a senior member of the staff she just put down the phone in my ear. THIS IS NOT THE WAY TO TREAT A PAYING CUSTOMER. Each month the monthly fees are deducted from our bank account, but when we need them to honour their contract this does not happen. PLEASE ASSIST!!!!!!