Complaint Review: Justin Lee Caldara

I was contacted by a Justin Lee Caldara offering to help me with a loan I advertised on Craigslist, he asked me to send a fee of £300 to cover insurance and paperwork. I did this as it was the USA and I'm in the UK, by Western Union. So I did pay the fee and still got nothing to this day, have paid a total of £3000, to this day and more than 2000 emails I still have nothing, this has caused me to seek medical treatment to which Justin still demands I pay him more to get the loan. I have have no option now to complain.