Incorrect amounts debited from my account

After another failed attempt with Vodacom to get my accounts and billing sorted, Vodacom incorrectly debited my account for the 3rd time. Spoke to an adviser Charity who wasn't even a pleasure to speak to because she spoke over me and refused that I speak to her Line Manager Yanga. Yanga was on a call and he wasn't able to listen to my query. My contract with Vodacom has been breached, someone changed my line speed in August 2022 without my knowledge, now what I thought was my monthly amount R699 has without my knowledge changed to R899 Vodacom debits my account R1099. I AM SO ANGRY WITH THIS DIABOLICAL SERVICE FROM VODACOM AND ITS STAFF. CHARITY COULD NOT GIVE ME ANY ANSWERS TO WHAT I ASKED, SUCH AS WHO CHANGED AND WHY IT WAS CHANGED. I CANNOT UNDERSTAND HOW A COMPANY SUCH AS VODACOM CAN TAKE THE INCORRECT AMOUNT FROM A SINGLE MOTHER WITH 3 KIDS. I HAVE NEVER IN MY TIME BEING WITH VODACOM HAD THIS ISSUES BUT SINCE I MOVED RESIDENCE ALL THIS **** STARTED. I AM SHORT MY MONEY BECAUSE VODACOM WANTS TO TAKE WHATEVER MONEY FROM MY ACCOUNT. I HAVE TO BORROW MONEY TO BUY MY BABY'S MILK, NAPPIES AND ALL BECAUSE VODACOM THINK BECAUSE THEY PROVIDE A SERVICE THEY TREAT HONEST WORKING PERSON SUCH AS MYSELF LIKE THIS. THEIR STAFF IS NOT HELPFUL. CHARITY LOGGED THE QUERY SR *** FOR THIS INCIDENT. I HAVE BEEN PROMISED CALL BACKS BY A LINE MANAGER KENNETH THAT DIDN'T EVEN HONOUR HIS PROMISE SO HOW CAN I EXPECT ANY DIFFERENT FROM THEIR STAFF. LIES, DISRESPECT, DISGUST ARE WHAT YOU STAND FOR. I WANT MY HOME LIFE TO BE COMFORTABLE FOR MYSELF AND MY KIDS, SO THAT WE CAN ACCESS TO INTERNET FOR WORK, SCHOOL SO IT MAKES OUR LIVES A BIT EASIER BUT WITH VODACOM ON UR SIDE ITS JUST WORST. VODACOM AND ESKOM ARE THE SAME,PROVIDE A SERVICE OR LACK OF AND THEN CHARGE YOU MORE EACH TIME. AGAIN, LIKE I SAID THIS HAS ONLY BECOME AN ISSUE WHEN I MOVED, SO CAN SOMEONE WITHIN THIS COMPANY KINDLY EXPLAIN FOR 10 MARKS WHAT IS GOING ON WITH MY ACCOUNT. I WAS PROMISED A CALL BACK BUT AS CHARITY SAYS HER MANAGER YANGA IS BUSY WHEN ESCALATIONS SO SHE CANNOT TELL ME WHEN HE WILL CALL ME BACK, SOMETIME THIS AFTERNOON. WHEN I AKSED HER TO GET A TIME SHE SAID HE COULDN'T TELL AND KEPT SPEAKING OVER ME WHEN I ASKED HER TO CONFIRM THE TIME AGAIN. HOW IS THIS ACCEPTABLE, YANGA YOU ARE NOT THE PRESIDENT TO BE THAT BUSY FOR A SIMPLE QUERY UNLESS YOU DON'T WANT TO DEAL WITH THIS PROBLEM BECAUSE YOU KNOW THAT VODACOM IS DIABOLICAL.SO I WILL BE WAITING TO SEE IF YANGA CALLS ME.