Data just dissapearing on moth end January 2016

On 2016/01/31 i checked my balances on my no *** and i had 231.90 MB data valid until 19/02/2016 on my phone and was using wi fi with data switched off. At appr 14h30 today i checked and saw that my data balance is .00 knowing this is impossible i called 111 and after the security check they informed me it was a system error ad that they are refunding me R59.00 airtime so that i can convert it to 250 MB and it would be done in 5 min after 30 min it was not done yet and called again and i spoke to Chantal @ 111 she confirmed and said will receive it , it's on the system wait an hour. I waited and nothing now almost 4 hours later phoned the call center and they tell me there's nothing on the system and i used my data i asked to speak to an supervisor hot under the collar now and Sweetness came on the line telling me the same story. She said she will have to go listen to the calls and call me back but they are having system problems to listen to calls as soon as she can she will call me can take days, i am far from any store now i am stuck because Vodacoms' mess up it's ridiculous that in two hours i have 4 versions all i want is my data back now im tired of Vodacom's nonsense