You can apply to have your results verified at British Council Siam Square (between Monday and Friday, from 09:00 to 18:00).

Mistakes and changes 

Occasionally, a form or certificate may contain incorrect or incomplete information, such as a mistake with the spelling of your name, address, date of birth or other information. 

You should contact British Council Office. Changes on Statement of Entries and Statement of Results are free of charge, but you will have to pay a fee for any changes Certificates.