THIS NUMBER I DONT KNOW BUT RINGS EVERYDAY DOES NOT LEAVE A MESSAGE. I HAVE GOOGLED THE NUMBER AND THIS IS WHAT CAME UP (02) 4783 8033 is a Fixed Line Telephone Number and could be a Spare Number.
However, number 02 4783 8033 might be spoofed by scammers who will manipulate the number so that the call appears to be coming from a local or well-known phone number, making it more likely to be trusted or answered.

the call mentioned it was potential fraud no message was left

Caller: I don’t know

Claims to be a free hearing test service. Called after 8pm.

Caller: Amplifon

Claimed to represent Amplifon, hearing care specialists offering free online hearing tests etc. At best, telemarketing, and at worst a scam; either way, a nuisance. Be cautious, and don't answer any of their probing questions with the word "yes" just in case. Or is my paranoia showing???

I just blocked them.

got a call from this number, no message left, spam on google about 16.00

Rings my mobile every day, but no msg.But my mobile says "Potential fraud"

Unknown number, no message left so I've blacklisted the number. I appreciate all the comments left by others. Thank you.

No message left. Number blaclisted on my phone.

I don't do surveue any more because this is what you get.Hope this helps

Same as everyone else.If you filled out a survey for free hearing aids this is what you get.Insessant calls.i just disregard & delete

have had this number call often I just delete will try blocking

Total nuisance, never leaves a message always hangs up after my "nobody home" programmed response.

Caller: I don’t know

Has called twice Wednesday 27th, once the next day and once the next. I don’t answer. I googled the number it said it was a fixed line but most likely be spoofed by scammers.

Three calls from them so far. I haven't picked up and they never leave a message but my phone lists them as suspected spam

Caller: A hearing service

Same as everyone else has said, however I've rung them back 3 times and told them to stop calling me, yes they still do! I'm not sure who to complain to about them but clearly they don't give a crap what anyone says to them.
Aust accents too so not a call centre in India somewhere where there could potentially be language barrier issues. Extremely frustrating!

Keep ringing but no talking possibly scammers so annoying