This is one numeral different from my own mobile number. I rang it yesterday because it was on an invoice I wanted to check. There were no red flags from that call but it was weird that it was on an invoice and the person I spoke to was not related to the invoice (which I knew and had been expecting). However, today, I received a text to 'Noora' asking if I was OK because the unsigned sender had been looking for me. I find this turn of events very suspicious.