Compare broadband after filling in online questions

I have received 2 calls from this number. The first one cut me off as I answered. I rang the number back only to hear a music soundtrack so hung up quickly. The second call from them did the same. This time I didn't ring back. No idea who they are, what they want or why they are calling.

It's comparebroadband.com.au, they called after I filled in my details on their website and we discussed broadband options

I've received 5 calls from this number in the last 2 days... no responses to texts or anything.

They just called me and hung up the number was 0488 827 906 so why should I call then back! I answered when they called and heard people talking in the background .. then I get the following SMS from COMPAREBB
Dear XXXX, we are following up on your broadband enquiry, please call us back on 1300 763 813 and quote your reference number JXXX.
Nope not calling you back you want my business then don't hang up on me!

telemarketer

Compare broadband.

Yeah, must be compare broadband. I was looking at their (dodgy) plan options a short time before the call came through to my mobile.

I got Spanish guitar music with someone doing poor rifts in between.

Scammers, tried to sign me up to a free holiday and asked for credit card details

comparebroadband

Exactly the same thing happened to me! Does anyone know what this is about? I had just put my number into compare broadband.com.au