Keep getting missed calls from this number but when I call back get a message "The number you have dialled is not in service, please check the number and dial again".
Very annoying as well as suss

A young girl on the line asked me something about a holiday offer...and when she can talk to me again at a time more convenient...I asked her 'who are you and what can I help you with" and she stuttered..."oh...its nothing." Very suss. How do these stupid a**holes get our numbers? And are any authoritive law faculties doing anything about it?f*cks me off to no end.

I called back number (02) 8897 0830 phone line saying the number I have dialled is not in service anymore

Have received this missed call a number of times. Got the same message as Pippy when I called back. Never leave a message. Probably an auto dialler from India or the Phillipines trying to sell us something.

I've had missed calls from this number in the past few days, and when I returned the call the message says, "The number you have dialled is not in service, please check the number and dial again". This is very eerie and freakish!

Same happened to us. Scam!!

Also received call tonight, but there was silence on the other end. Called back & got the same message as Pippy "... not in service..."