poor customer service and unable to get my money back

I had a Prepaid Data Bundle Account/Phone which I did not use for sometime due to work travel. In the Month of Feb and March I purchased Data Bundle (Feb 2019) and Air Time (In Error in March) for the number i had and I could not get access to Internet. I assumed this is due to poor reception in the area I live and in March when I went to Vodacom office to sort the incorrect purchase I made in March I was told my account has been closed and I no longer have access to the Phone Number that I have the Sim Card for. why I was not notified when the account was deleted and also why I was not notified that I have made a payment for a deleted account. I have been ripped of for R600 in two months and none in Vodaom cared to contact me. I tried calling the customer service 2 times and I was told bad luck. I can't do anything. I even asked if I can move them to my active cell number and I was told NO. I went 3 times to the service centers and for the following reasons they were unable to help me. 1) No technician in the office (Constantia Village 10 March) 2) NO Electricity (load shedding) at Northgate on Saturday 16 March) 3) NO Electricity (load shedding at Northgate on Sunday 17 March) 4) the Northgate team member sold me a sim card and told me to do a sim swap and he will help me and so far nothing has happened. who is going to refund my money?

Maryam Assai