Vodocam billing confusions

On Friday 26 Feb 21 I phoned Vodacom business to try to find out what happens to my left over voice minutes from a previous month- do they carry over and how are they shown on the Vodacom App. I ended up even more confused then before the call except that I learned that apparently left over voice minutes are forfeited after 60 days. The app figures do not make sense at all At end Jan I had 391 voice mins left over - but this does not reflect on the 1st Feb. My package is red select which works out as R732.07 per month fro 800mins. 31 Jan I had 391 voice mins left over as per the app 01 Feb it shows 842 voice mins (additional 42mins) - the agent says that these extra 42mins are what were left over at end December? On 2nd and 3rd Feb App indicates bill is now R433.03 on 4th Feb bill has now jumped back to R732 How they jump from one figure to another is unexplainable I am at loss as to when they are going to credit me the 390mins let over from end Jan? Don't even try to understand these charges and how they work - you will need at least a Phd in confusionollogy The whole billing system is a disgrace and leads to suspicion- its not clear - very confusing and really no logical explanation What they then do on your enquiry is send you an even more confusion set of data which once again can only be deciphered by an expert mathematician I will not take another package out with Vodacom - suggest buy what you need - at least then you will know what your getting...