VODACOM IS DATA ******* - THEY ***** DATA!!!!!!

VODACOM IS *****ING DATA DAILY! I LOADED 1GB DATA ON 10.09.2019 -3 DAYS LATER MY DATA IS FINISHED????????? HOW IS THIS EVEN POSSIBLE??? AND WHEN YOU CALL THERE IS ALWAYS EXCUSES! I WANT TO KNOW WHO IS *****ING MY DATA! 1GB USED TO LAST ME 1/2 THE MONTH, BUT LATELY EVERY 3 DAYS I HAVE TO BUY DATA! PREVIOUS TO THIS ONE, I BOUGHT DATA ON 06 SEPT AND BY 10 SEPT I HAD TO LOAD AGAIN!!!!!! AGAIN 3 DAYS! I AM ON WIFI AT WORK, ALL MY UPDATES ARE DONE ONLY WHEN I AM CONNECTED TO WIFI AND MAINLY PUT MY MOBILE DATA OFF AT NIGHT AT HOME (BECAUSE MY DATA IS VANISHING!)!!!! I WANT RESOLUTIONS TO THIS, OR I AM GOING TO THE OMBUDSMAN, THE COMPETITION TRIBUNAL, COURT, WHATEVER AS I AM SICK AND TIRED OF *******ION AND PLAIN FORWARD THEFT!!!!!!!!!! I WANT ANSWERS!!!!!!! 3 DAYS ON 1GB IS BEYONG REDICILOUS!!!!!