Phone keeps ringing, then stops after around three minutes, then rings again. This repeats until answered any time 24hours a day. Each time I have answered the call, a male voice who sounds drunk or on drugs; and with a Yorkshire accent says, "We are phoning from your bank, you ATM card has been handed in to us. To security check that the card is yours please tell me your PIN number". This is so obviously a fraudster. I have informed the local Police who have checked the number. The police have informed me the number is registered to a SKYPE (voip) account.