Extremely bad attitude and processing of upgrade

The store manager of Vodacom Lenasia shaheed is by far the worst manager I have ever met in my life. He and his sales person Ismail messed up my contract upgrade and after contacting them a million times have still not sorted out the issue. I am so upset that I would never recommend this store to anyone . I called the Vodacom customer care line and received even worse help. He told me he is escalating the call but he did no such thing and I have still not received my reference number. I want to cancel my contract because of the disgusting service that Vodacom offers.