TBS Securities

Has anybody ever dealt with or know anything about TBS Securities? - UK investment company.

They have called a few times advising me to invest in companies that they have selected and apparently researched and promising very good returns, offering shares below market price? It sounds too good to be true. They are talking very big numbers but they are not known. I somehow feel uncomfortable with them!
But I want to find out more about them.

Not at address given on website. Fax number is one used by two other companies on FSA warning list. Claims to be FSA registered but not on registers.

Has just moved website to whois blocking chinese server having had UK site closed.

You decide!