Disgusting customer service

<p>after my phone had been sent to the advanced repair center TWICE and posting a complain here I got some assistance. I was promised that my phone had been fixed and that should it give me the same problem again I should notify them and they will tell me to return and have it replaced. now since I sent a mail on the 6th June, no one has bothered to contact me. like the last time, my e-mails to ECC LO and advanced repair center are being read and no one responds. I feel like a fool for accepting their apology the last time because this is how they treat their customers, it wasn't a once off mistake. I was given an email address to use in future but they also just reading my mails and doing nothing about it. How long will I be treated like a mad person for? Must I pay for a phone that is not working? I'm done with this back and forth, please advise how to escalate this. </p>