Airtime depleted without being used

On 19 Jan I could not access my internet though I knew I had 500 data and R200 airtime that was loaded a day before by Vodacom as it was new contract.I dialed *111# to enquire about my balances.At 16h11 I had R179.65 airtime and data of 462.54.62 from my Meg 30 and 0.86 from my Meg 100.I then called Vodacom 114 where the guy gave me directions to follow and I did the strings with him.My phone went off and switched on again with my whatssapps coming through for the day and emails.I did not open them immediately as I was busy with my cooking.At 17h35 when I tried to call my Sister, I could not as the airtime finished msg came through.I called 114 was assisted by a lady she said my airtime and bundles is depleted and there is nothing she can do for me.I WANT MY AIRTIME AND DATA from Vodacom or they must cancel my contract and take their phone back I will go to Cell C, Mtn or Telkom.I had accounts with Vodacom for over 10 years with installments of R2000 or more but not one payment was missed and today I get to be ****** like this and being told that I cannot be helped...I am very disappointed .My Husband is always convincing me to leave Vodacom but I do not listen...disappointed