VODACOM not willing to assist or troubleshoot is costing me money

Unable to receive calls from other 082 vodacom customers. I called in numerous times after having complaints from my customers that they cannot call me. I am very technical as I am in the tech business, and being an extremely technical person myself, I tested my SIM on different phones, made sure that I am not being an idiot, and then logged the call. Before getting to log a call I was told to do the basics again made sure that I did not block the random numbers (the people whom I never even spoke to before that told me over whatsapp that they cannot call me), check call barring etc. Called again, asked to do the same. Called the call centre again, asked to do the same steps AGAIN. Finally got the ticket escalated to back office and almost 48 hours later I got an SMS asking me to follow the above steps AGAIN. VODACOM I AM LOOSING CUSTOMERS. I found other people that mentioned having the same issues, I even tried my sim in other phones and the same people cannot even call me. Is there some willingness to even TRY to assist customers in this company or do we just assume every customer is at fault here?