Sony Xperia e1 Telkom upgrade

Upgraded 2 numbers to these phones. On receiving the units the one was completely dead. The other one was freezing and needed rebooting 6 times a day. I phoned the Call Center and cancelled both within 3 days as protected by the consumer act. After 3 days I phoned and both numbers were still active on their system. They said they first need to collect the units. The units were collected 1 month ago but I am still paying for something I cannot use. Wednesday 4 Nov I spoke to Lillian and she promised it will be cancelled and a letter will be send within 24 to 48 hours. Today is Monday 9 November and still nothing received. Please do NOT do business with this company as the service they give is below poor.