***** Identity Theft and no consultant to speak to!!

I received a very suspicious email today from MTN stating that I was attempting to open a new MTN account. I also received an sms from MTN with a OTP. This is extremely disturbing as I did not apply for any account/contract with MTN whatsoever. I immediately googled the contact number and ***** email. I emailed the ***** department notifying them and received a reply to say that I must call the number provided and speak to a consultant. I called the number provided 3 times and there are absolutely no options to speak to someone! This is extremely frustrating as here I am dealing with a potential Identity theft situation and there is absolutely no one to speak too! This is shocking service! How can you not have anyone available to speak to regarding ***** issues?? This needs to be addressed immediately! What FICA process is even carried out to ensure you are speaking to the correct person??