I have just read a warning on Aydem elecric website warning of Callers to door or telephone claiming to be from Aydem and collecting payments. they have warned that this is a scam to gain card and bank information or cash.
I know that when living in a Turkey it can be very easy to see a uniform and believe that they are indeed officials from utility companies, they can
easily gather the relevant customer number (abone) making you believe they are who they say they are. please read and beware.
http://www.aydem.com/bpi.asp?caid=524&cid=1065[
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