Called back and was immediately disconnected.

I called back the number (02) 8375 3881 and reached vm that said I reached iPrimus

Caller: Supposedly Iprimus

Rang to suggest I go on Direct Debit, I said “No”. Thought it was suspicious so rang IPrimus. They say it’s not their number.

Caller: Iprimus

Iprimus customer care - to discuss your bill if it’s late etc....their other number that they leave as a message is
1300 858 585 to call them back on

I called back the number (02) 8375 3881 and reached vm but couldn't hear the company name

Who’s number is this

I rang once and got disconnected