Scammer number: 0333 234 1502
Any other scammer information:
“This is O2. Your overdue balance is £8.00 for account number… Please pay securely using the following link O2 UK or call us free on 0333 234 1502. Please note that any late payments will be reported to the Credit Reference Agencies which may affect your ability to get credit in the future. If you are struggling to meet your ongoing monthly payment, don’t worry we’re here to help. Please visit https://www.o2.co.uk/help/account-and-billing/payment-support for more information. If you have already paid this amount today please ignore this message.”
They put a real link at the end to make it look more genuine.