poor customer service

hi i am so dissapointed with the service provided by vodacom after 12yrs being a customer getting help at vodacom is a stress doing walk ins or telephonically, there is an *****ulant upgrade made to my account in february 2021 which i confranted vodacom about which after seeing huge debit on my account, they requested me to provide them with documents such as affidavit copy of my id with signatures of which i did but stayed over a month without any updates untill i made follow up again upon calling, reference number given were not on the system taken piller to post until i was told its is suppose to be a case of ***** department of which i struggled to get help. with them fixing the problem there was no communication or feedback i only saw money of reimbur*****t in my account with no word from vodacom. two months later in june another deduction amount i queried about was deducted again call in received ref (*** and***) on the 5th June 2021. today on the 18/07/21@ 14:45 i called in the agent said i should wait until invetigation is done and gave me these reference ***.