I, Mr. Oat, hereby certify that I am the Husband of Miss Thanis Passport No.12345 I am writing to tell you that my wife will travel to the UK from 27 to 3 , and that I will undertake to be responsible for all expenses related to her visit and other expenses if she needs. I have already transferred some money from my bank account to her bank account for supporting her visit in the UK
Enclose please find the copies of the transaction record, book bank, bank statement issued by Bangkok Bank and other documents.
Your kind considered will be greatly appreciated, and I personally guarantee that my wife will leave the UK as soon as her trip ends. If you need any further information please do not hesitate to contact me.