No where yo turn anymore

<p>So i have my cell no. ********** 100 and am unable to get calls from any telkom mobile or telkom landline. I call mtn for assistance and am told all is well on their side and call telkom who tell me its mtns problem. I had my daughters school whatsapp me advising me she is gravely ill and they cannot get hold of me. Its been over a year and yet nothing and no one can help me. Do i need to change my network? </p>