All frauds are based on pressuring people into taking an immediate action on a false premise to stop a disaster. Most of them are based on immediate short term actions, so you don't have time to rationally think about this & about the obvious flaws in their arguments, but not all. If it is a complex problem as climate fraud proves, which is why for the last 30 years we've had 15 months to save the planet from fatal thermal runaway unless societies spend vast amounts on expensive useless green things like intermittent energy sources that don't work & how we have all got to stop moving around & live on a diet of gruel, unless you are royalty or rich or privileged when you can pay a £5 CO2 penance to the appropriate CO2 offset god & continue as normal with your CO2 intense lifestyle.
If you've got a BT account where it will be processed in India then all your details will be known where you preferred they weren't where this is extra bunce & a 'perk' of the job selling your data. About 15 years a go I had a phone call from 'BT' where they knew the payment date & Post Office where my last bill had been paid & would I like to give them my bank details to setup a DD. I said no thanks as you have called me, so I don't know who is calling. When I pointed out anybody, can call anybody & purport to be representing anyone, lets just say from that point onwards in the call the caller got increasingly assertive, then aggressive, so I ended the call, checked with BT & they confirmed that nobody had called me. Not long after that I read in the trade magazine Computer Weekly about BT data leak problems, which of course they have always officially denied.
If you get a phone call on anything with 'suspicious' activity on an account, tell them to sod off & then call the bank / teleco, if necessary using either a different phone line / mobile to confirm it is a hoax, if the call needs to go that far as once it is an obvious fraud call I'm then normally very loud & very rude until they get the message & terminate the call.