They called three times today, answered first time but they dropped out. After three I searched their number on Bing and found out they were of no consequence and useless.
So blocked them. How? Add them to your contacts and people, them edit that address and set the block. That was on my 4 yo HTC with Android.
Thanks all for reporting your findings.

I have the same problem. I answered once and there was nothing on the other end. Blocked the number and now I get at least 3 missed calls a day from them if not more. I have no idea how they got my number I never use it on the Internet. These people are very persistent.

Relentless I have endless calls from them various times a day, EVERY SINGLE DAY, have just figured out how to block them. (03) 8789 4488. Don't answer just immediately block them, they will not listen and will call again if you do answer.

Yet another one? How many more times do they have to get the answering machine and not get the message? Not interested!!!!

Block them or make sure you have a good ringtone that you don't mind listening to! These guys call relentlessly. Says they're AFF Market Research who conduct mobile surveys! Not interested - leave me alone!

unsolicited call on my do not call registered number

Over the past few years, it's been a constant barrage of junk calls, including robo calls, scammers, people who say they are collecting for charity, etc...

This is just another one.

If this number (03) 8789 4488 calls me again I am going straight to the ombudsmen. It has called me every day for the past few days always at an inconvenient time, and then hangs up when I answer. I called it back and you get a message that it's from "AFF for Telephone Surveys".

On a Sunday at 4pm get a life

blocked

6:20pm? GET EFFED!

got a call tonight from this number so I blocked it so they can have fun trying to ring me now

Got called today by this number at 5:16pm then after that there was a private number call. Never picked up any & let it ring out & enjoyed hearing my ringtone :)

Called me even though I am on the do not call register. Complaint made.

I have received so many calls from this number, always 7.30-8.30 at night. Blocked the number now but very annoying.

I have the number blocked on my mobile. They can try as much as they like but it won't get to me!

8:30 on a wendsy night?
I told her to " f*ck OFF"
Now let me be honest im not rude at all,
Just a long day, grumpy, and tired
And getting ready to put the kid and myself to bed.
8:30 on a wendsy?
What overtime?!
Cmon more needs to be done to stop thus rot. If i annoyed people in town with this crap id never get another job ever again!!!!

They keep on calling, I've saved their number as one of many do not answer tele callers. Over from the being annoyed part, they can pay for their calls.

F off already market research rhetorical coprolite