Calling on my landline and mobile. Annoying. Dont answer.

This person called twice within two minutes, I did not answer the first time, so the person called again a couple of minutes later. Also, I am on the DO NOT CALL REGISTER, but all these telemarketers insist on calling.

They have called several times today

Luckily my phone has a number block feature

I've received several calls from this number... I've taken to either declining them or answering calls from interstate but saying nothing until I hear from the other end, which is usually nothing. More often than not, the caller hangs up within a few seconds. I suspect this number is one of the many rogue carriers who churn you away from your ISP or phone carrier in a process called "slamming", (look it up for yourself). Simply don't even speak to these people, you will find yourself scammed and churned away from your provider without your consent.

I called (03) 8640 9766 back but the number is no longer valid. I got unavailable tone after few rings.

I have missed calls from this number, and every time I try to ring is back it says its switched off or unavailable. How on earth am I suppose to contact you people if you don't let me ring in. its annoying !!!!!