Cold called by this number in UK. Number tracks to Portland, Maine, and from the Canadian Hotfrog site to commodity dealers Buttonwood LLC (listed as their fax number). Company is on a UK Financial Services Authority warning list as targeting the UK without authorisation and complaints have been received. The FSA advice is: "If you are cold-called by an unauthorised overseas firm in relation to stocks or shares, you should be extremely careful. If you are contacted in such a manner, the FSA advises that you simply terminate the telephone call – the most effective protection against such unauthorised firms is to have nothing to do with them."