BT sending security code to wrong number

Monanore

Does anyone know how many different places BT store a phone number for you ?

I set my bt account ( ie on bt.com, where my personal info is ) to my main mobile number but every time I contact them about different issues they insist on sending a code to another mobile number which fortunately I still have.

If I ask about it I never get a sensible answer ( one agent said 'it's because I have more details than you' !! ) and I daren't ask them to change it in case it makes things worse.  Ideally I need to know how many and which systems they are storing a phone number on before doing anything.

Any ideas ? Thanks.

flaneurs_lobster

No idea, but Vodafone have three mobile numbers for me, all of which I still have, one of which is on Vodafone, I get to choose which one the OTP is sent to (would prefer 2FA with app but hey-ho).

Given how, er, interesting Vodafone's CS can be I haven't dared trying to fix this.