Vodacom Fiber

I call vodacom fiber department on the 1 November I was 42min on the line,apparently the 10 mp contract that im on since faber came out in 2019 is discontinued and no longer exists, with out any form of communication they loaded me to a 50mp.Which is R699 per month but they debited R900. I'm still waiting on my refund and a agent to get back to me regarding the upgrade. Because not was communicated with me,I have done numerous speed test and my fiber speed is less then 25 so not only do vodacom ***** my money and they robbing me aswell.Im very disappointed been a loyal customer for over 20 years. This is my reference number sr*** still waiting on my refund.