Load of info out there about Smile being a bunch of scammers.
A google search brought up, http://www.touchbolton.com/business/list/bid/2445197

Smile Telecom
Unit 2-4 Bury Business Centre, Kay Street, BURY, LANCASHIRE BL9 6BU

01539-568390 (confirmed by UK Info)


One site http://www.noconline.org/newsdisplay2.aspx?id=2725 ; shows John Seddon to be a rep of Smile Telecom
Unfortunately there appears to be 22 John Seddons in the Lancs area, so you can't call him personally

Another site http://wwww.radioauthority.org.uk/static/archive/oftel/ind_info/licensing/addres... list/o_s.htm  gives

Smile Telecom Ltd
2 Crow Wood
Brigsteer
Kendal
Cumbria LA8 8AW
Provision of international simple voice resale services

A search of the postal address shows the company to actually be trading as TELEPORT NETWORKS LTD, but using the same phone number  01539 568390

It would appear that smile is a front for 6 spammers who operate outside of the UK, and refuse to answer the demands of icstis to refund the money unless their clients authorise it.
The 6 spammers are
Fast Way Holdings in Croatia;
Greenbay Ltd and Quartel Ltd in the British Virgin Islands;
Indiano Communications in India;
Litmus Ltd in Florida
Vertical Media Ltd, from Kuala Lumpur.

Best of luck.