Unreasonable Billing & Company can not be Traceable

I have been using RAIN since 2022 but this year look like I am dealing with ********s. I recently upgraded to 101 router in middle of Apr and I was told end of the month I'll be charged certain amount for Sims data which I agreed to those charges of R254. On the day it deducted with no issue. Monday 5th I complain about my bill for end of May been high it's I'm been double charged from R649 but instead they say it's R1255. Trying my best to communicate with them but they're avoiding me and on WhatsApp they using this stupid Ai who even cannot resolve a request to set a reminder to ask an urgent to call customer. Today 10th May I just found out that yesterday the 9th May RAIN deducted money out of my account which is a non dated agreement (*****). If the company is not willing to communicate with me there will be a mees of legal action to this if want that R1255 in my account and rectification of my premium to R649. Accually the owner of Rain is hiding because we can't call we can't locate office's only useless emails circulating. November my wife was also double debited R625*2 and thought Dec/Jan they won't take again but guess what the took another R625 an I let this go. Now they have done it again and I'm prepared to fight this battle.