Caller: Humm???

When answered nothing was said so hung up then called back and intro message said welcome to humm.

These people have been calling me twice a day for a week now, each day a different number but always starting with 02 9942. I called back and was told it was Flexi-rent and they only seemed concerned with getting my Flexi-rent account number (I don't have a Flexi-rent account). When I asked why they would be calling they got very vague all of a sudden. The last woman I spoke to said she would remove my number from their calling list but they have called again today. Numbers used so far have been (02) 9942 5932, (02) 9942 5504, (02) 9942 5971, (02) 9942 5991, and (02) 9942 5527. I don't think it's a scam, just a P.I.T.A.

I called back number (02) 9942 5540 was put on hold music but no one answered the call.