Very poor service

In the past 24hrs i have been trying to call vidacon call centre in there no 135 because my cell number has been sending me doggy sms's. It looks like there is soneome who is trying to have access on my phone the lasted sms u got is it looks like i inserted my sin card in the ither phone which i didn't . Everything when i call for gelp from my network provider they are saying i must speak to their TOBI and thats an machine which doesnt sold my problem. Im cery frustrated and disappointed with my network provider of ove 20 yrs. Im scared i might wake up with this phone not working because i dont get help and fear of my personal thing in this phone. VODACOM HAS FAILED ME