Vodacom has the WORST customer service

Vodacom is now working on my last nerve! I took out a contract last year for an Iphone 6s and was paying R358.50 and this year it increased to +-R361.50 and I understood cause it due to the 1% VAT increase. Yesterday (10/05/2018) I just received my monthly statement and it says that I must pay R408.58. I got a shock and called your customer care line and to say that your consultants are clueless is honestly an understatement!!! I first spoke to Bongi Mkhwa**** and she tried to find WHY my premium has changed and she tried explaining but she just wasn’t making any sense which made me believe that she has no clue about what she is talking about. I then told her that I don’t want my premium to change as I took out a contract for R358.50/R361.50 cause that it what I can afford and I don’t want to live beyond my means. Bongi then said that she will transfer to another consultant who will help me regarding my issue (one thing I can tell you is that your consultants have mastered the art of transferring “difficult” clients). I was then transferred to a lady by the name of Ntebu and she still couldn’t explain why my premiums changed instead she kept telling me that “We sent you an sms and WE have the proof that WE sent you a sms” now at this time Ntebu’s tone has changed and she is speaking to me like I am a child and is undermining me. In my life I have never been spoken too by a consultant in that manner. If she feels that she cant handle an objection then that job isn’t for her and she needs to find something else. I am really annoyed with being treated like this by such big companies and you feel that you can get away with it. If this matter is not sorted out then I will be taking my matter to the ombudsman and maybe they can assist me there cause I really want out of this contract with Vodacom.