Worst customer service at vodacom!!

Awefull awefull awefull!!! I had a data contract with them and after 2 years I wanted to stop my contract..I go into the shop a month before it should end..they tell me they can't help me and give me a number I should call. My contract was ending on 30 April 2021..I phoned them on 9 April 2021 to end it. They said I phoned too late as the debit order goes off on the 7th of each month..so the contract will end on 31 May 2021 and I have to pay for that month. I am fine with that..on 4 may I try to use the data still on the account..but the number does not work..I phone vodacom..the lady said that the guy suspendid the number..she will take the suspension back, but it will take 24hours..on 5 may I call again..the number still does not work..the lady tells me how to unlock the sim..this works. I see on my vodacom app that an amount is billed for R615..and also R220..I don't understand as my contract was for R329. I phone vodacom on 6 may again. I tell the lady about all my previous calls..how I have not recieved notification of the cancelation yet and she changes my email..as I have told the guy on 9 April. She says she can see that my contract had been cancelled and will stop on 31 May. She only sees an amount of R220 that I am going to pay on the 7th of may, but nothing of R615..so she says it might be a mistake on the system. Today I wake up to find R615 deducted from my account..money that had to go for nappies and bum cream for my baby. I am furious. I live paycheck to paycheck and now they just take money from my account. I phoned them..the guy stopped the contract immediately and said he would put in an escallation or something and someone will investigate en listen to all the calls made.. I just don't trust them to just sit around and wait..because I trusted the last person I spoke to on 6 may and now I have R615 less in my account and a ruined budget. WORST CUSTOMER SERVICE EVER!!