Bad customer service

I did an upgrade with vodacom. They did not disclose to me that the monthly subscription is exclusive of VAT. Secondly they gave me a number that belongs to someone else. I called and explained to them about the new number and the bill that reflected on the App. All consulted I spoke to they failed to explain to me why I'm paying more. Last week Sunday I requested to speak to a manager after I was not getting clarity. I spoke to Lindiwe Maseko n explained everything to her, she advised that she will escalate the query n get back to me within 72 hours. Yesterday I called I spoke to a lady by the name of Faith if I'm not mistaken, she said she will ask Lindiwe to call me since I was waiting for her to call me after 72 hours with a feedback. Today I called I spoke to another lady n she advised she don't know the department that Lindiwe is in. She failed to assist me she just offered me some schedule. Please refund my money n change the number you gave me. That is not my fault but you poor service. Bad customer service I've ever seen