No Service

<p>For 3 years i am battling with Vodacom. My phone what i use for my buseness does not ring and it does not show a missed call. If you go into my call log nothing is listed and after plus minus 30minutes i receive a sms that i have a missed call. At first the told me it was my phone. I swithed from an Iphone 4 to an Iphone 5 with no result. Then changed to a Samsung grand neo plus with no result. Then on to a Samsung Note and still the problem exists. Then they saidi have to many apps running on my phone and i use my phone only as a phone and for sms and whatts app. Then the one agent admitted that they do not know what the problem is. I asked him to send me a mail and state that they do not know how to assist me. He said he would send a mail confirming that they do not know what the problem is and it is now 4 months later and i have received nothing and the problem is still there. On of hte agents said i have no problem he does not know what my problem is. I am losing word due to this problem and nobody seems able to solve it. If somebody calls my nr it just says the subscriber is not available. Is this general practice with vodacom???? </p>