********* business practice. Paying for service not given to me and being told it's how it is

I terminated my contract and converted my number to prepaid 28/02/2018 being the last day of contract. Vodacom decided to terminate all my benefits end of day 27/02/2018. So I lost one day to use the services I will be paying for with my last invoice for February. over and above that I buy additional data on account which I lost as I woke up to zero data balance, zero sms balance and zero calls balance.

I spoke to the call centre agents, Lungiswa and Itumeleng who say this is Vodacom process conversion is done on the last day and my phone should be switched off for today. I have no problem with the service terminating on the last day as long as my subscription fee is also reduced for the day I did not have service. why Vodacom makes me pay full month fee when they know they cancel service 1 day early.

what about my data balance? reverse the change on account for the 4 gigs data bought on the 22/02/2018 and only bill for what I used .

this is *******.