004089385876

got a call from this number .. came up as international... female voice states they were from card services from my bank...and charge had just been made for Amazon for £400 and £1300 for bank transfer . as this is not usually  a service i use they have put the transactions on hold for me to verify .... 1for confirm  2 for cancel and to hear message again 0... i pressed  0 as i wanted to make sure i heard right and a male voice said you will be put through to a teller ... at that point i hung up. how are thee people allowed to operate???