DISGRACEFUL & UNCOUTH SERVICE FROM VODACOM

I was paying R379 for my Vodacom contract monthly. I Received a call from Vodacom on the 22/07/2020 to upgrade my contract, with the charges remaining the same, upgrading me to a higher package. I upgraded, and cancelled the subsequently cancelled the upgrade 7 days later on the 30/07/2020. REF NO.*** I received an SMS on the 03/08/2020 informing me that the query has been closed. However no action was taken by Vodacom, as they did not cancel the upgrade and are now billing me double my previous monthly amount. The above conduct is grossly disgraceful and uncouth