Mobile phone cold calling scammers

For UK people and BBC American People, watch BBC Scam Interseptors its about phone or cell phone scammers, saying they are from your phone network ( security, promo phone) they say in a indian voice i am calling from ( voda phone, ee network, virgin mobile) dont fall for the scams if they are taliking to you in a indian voice or american voice calling from your bank, its a scam.