To Whom It May Concern, hereby certify that I am the aunt of Miss Prinlada Worayatip I, Mrs. Somtavil Tuppawattana Passport No. AA5520942 I am writing to tell you that my niece will travel to America and that I will undertake to be responsible for some expenses related to her visit and other expenses if she needs. For supporting her visit in America. Enclose please find the copied of the transaction record, bank statement issued by...... and other documents Your kind consideration will be greatly appreciated, and I personally guarantee that my niece will leave America as soon as her trip ends. If you need any further information please do not hesitate to contact me.