Incorrect Billed on Account

I was called and offered an opportunity to upgrade my Contract , I was offered a Sony-xperia M2 which never arrived . I then called to inquire on the status of the upgrade seeing that i had been billed yet the handset has not arrived , i was given incorrect information which resulted in me requesting the person who did the upgrade who then told me the upgrade was not actioned and she had to start over . I requested an account where i pay R400 and less and she suggeted i take an A5 with reduced airtime but i get billed R200 more .I got billed for both the Xperia and the A5 . <br> <br> Task 893428 , Task 889510 , Task 884497 - All closed with no response