Horrible customer services to a 10year + customer

Did an online upgrade to the mobile internet ruby promo for R329pm giving me 100gigs anytime data on a month to month contract but when I call in they confirm that my contract is R349. The customer service is absolutely terrible. no one can fix the issue they keep giving me different numbers to call and blaming other departments and some just hung up. spoke to Noni, Fisani, Beki, Kebolangi and a team leader Ravi Pillay. They can not help and drop the call on you