Worst ever. No feedback after many calls, emails and complaints

This is my 4th HelloPeter complaint. I'm still waiting for someone to contact me regarding the resolution of the error on your side regarding my billing. I've logged a complaint on Hellopeter few times. I've been struggling with this issue since 25 May. I'm not getting any proper service or resolution. I'm very frustrated already. It's as if know one knows what's going on. Is there anyone out there that can help or escalate this matter to a higher management? You respond by you acknowledge my complaint. And that you will get back to me as soon as possible. When is "'as soon as possible"? I'm struggling from 25 May. It's 12 June already. You are fast to take once installment, but your complaint service resolution is the worst ever. Does no one care? Does no one take responsibility? How hard is it just call me and give me some kind of feesback.