Calling Thailand via land-line, saving money and getting telephone receipts
Call 118866 is a land-line company that will save you money making calls to Thailand and also provide you with statements of the calls that you have made. Visit the web site and register your land line number
As soon as the registration is completed, you can dial 18866 before each call and you will profit from the lowest rates around. There are no subscription costs, no monthly or minimal fees or any form of prepayment
Calling Thailand from the UK
Landline 4p /min
Mobile 1p /min
http://www.call18866.co.uk
However you are contacting your Thai partner, make sure you can get the list of calls you make as the embassy are going to need them at the time of the final visa application.