BAD SERVICE

Mtn at carnival mall gave me the worst sirvese i ever got in my life i need to upgrade my contract with them they said i must wait they will phone me when i can get the phone i waited the hole day and got nothing i will not be upgrading now i will CANSEL MY CONTRACT i have been with mtn for more then 15 years and this is how they treat costemers its a shame i have to give a star review if its up to me they will get no start for there service