The caller with the number +6498896234 is likely a scam artist posing as a representative from Kalkine NZ, a legitimate business. The caller's behavior of hanging up and then claiming to be from a call centre based in India when called back raises suspicions. It appears to be a case of identity theft, where the scammer is using the name of a legitimate company to gain trust. The fact that the caller is not actually from Kalkine NZ, but rather a call centre in India, suggests a phishing attempt to deceive the recipient.
They rang, then hung up; when I called back they claimed to be Kalkine NZ’s India‑based center, but it felt off, FYI.