Obvious scam number, you cannot call them back.

Do not answer.

Hard to understand what the person was saying due to heavy accent, but something about a training institute. I said I wasn’t interested, and they said “Why did you register your details with us then?” Just hung up because I hadn’t registered my details with anyone and the call was at night out of business hours.

They keep calling, and the last two digits keep changing; they called yesterday on 02- 7251 2532 and today on 7251 2555. If you call them back, the number is busy! Block! Scammers 100%