Hi, for any potential call spoofing problems (where you receive calls from people saying you've called, but you haven't), please reach out to our Nuisance Calls Bureau (NCB) team on 0800411422. The team are available Mon - Fri 8:30 am - 5 pm.
They’ll be able to investigate the problem for you.
Please also see our nuisance or scam calls page at - https://www.bt.com/help/security/how-can-i-stop-nuisance-or-scam-calls-
