(07459) 47-3410

Claimed to be from O2 giving a 40% discount on my bill. Asked me to confirm if I would be home at certain time tomorrow to 'receive documents' regarding the discount. I declined. Asked them how I could know they were from O2 and why I would need to be home to retrieve docs.
They asked me to confirm email address. I declined. Reiterated not convinced they're from O2. They ended call. Number blocked. Confirmed inauthentic by o2