company called cornerstone claiming I entered a competition through myer or aldi and I've won an eftpos voucher or tablet. catch is you have to sit through a meeting with someone about ways to reduce your mortgage.
I get these calls constantly and I have no recollection of ever having entered a competition.

I am not sure who called me

It's a scam call.

I called back number (02) 9483 2924 rang once then goes to busy tone.

I called back number (02) 9483 2924 reached voice mail but did not say from what company.