*****ing my Airtime and uses it as Data!!

On numerous occasions used my allocated Data to go on Internet. Doing so Vodacom uses ( *****ING ) my Airtime and use it as Data!!!! I made screenshots of this occurrences and not once used the Airtime to make calls!!!!!! Example - 26/01/2018 ( time 12-02-21) Airtime was R 656.49 and Date was 114.27 MB. Went on Internet ( time 12-06-56) and thereafter checked my balance. Airtime now R603.72 and Data still 114.27 MB!!!!!!!! This is an ongoing occurrence!!!!! WHY ARE YOU *****ING FROM YOUR CUSTOMER, ALREADY WITH YOU MORE THAN 20 YRS??? Give my money back and admit your "wrongdoing"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...or should I lay a ******** charge against you????