thank you for your inquiry. we do not have a record of receiving your petition. it can take at least six week for the national visa center ( nvc) to receive an approved petition from U.S citizenship and immigration services ( Uscis) and center it in U.S department of state’s data base system. if it has been less than six weeks since Uscis approved your petition, you don’t need to take any action at this point. if Uscis approved your petition more than six weeks ago. please send us a scanned copy of your I797 or I 171 notice of action- approval notice. you can attach the scanned copy to an email, and send it to nvcresearch@ state.gov. In the subject line of your email, please type the original receipt number form your I-130 approval notice. if you have mor than one petition, send a separate email for each petition. once we receive the copy of your approval notice, we will contact Uscis to find your petition before you send us an email, please check your notice of action and make sure it says your petition was approved. if it says that Uscis kept your petition, or if it is a notice other than an approval, you should contact Uscis for more information. you can contact them on their website at Usvis. gov, or by telephone at 1-800-375-5283 CIS receipt number Wac1890161821. Renata national Visa center written inqury unit PAE.support.contrator ask nvc@ state. gov. IMPORTANT. if you visa petition currently processing at the natinal visa center do not let more than one year pass without contacing NVC. if a period of one year passes from the last date of contact ( by telephone, mail, email) with NVC, all submitted fees will expire. if this occurs, the fees must be paid again in order to continue the immigration prrocess. for additional information on immigrant visa processing please visit our applicant resources and guides web page at NVC. state. gov resources. thí email is sensitive but Unclassified based on the definitions provided in 12 FAM 540 any information in this transonission pertaining to the issuance or refual of visas or permits to enter the Unitet states shall be considered confidential under section 222 (f) of the immigration and nationality Act ( INA) [ 8 USC. section 1202]. access to and use of such information must be solety for the formulation, amrndment ad minu stration, or enforcement of the immigration, nationality, and other laws of the United states under INA 222(f) and aspecified in FAM guidance. if you ha e received such information in error, do not review, restransmit, disclose, diseminate, use, ortake any action in reliance upon this information, and contact the sender as soon as posible . Dạ đây là nội dung bức thư em nhận được Chị vui lòng xem và hướng dẫn giúp em. Thanks Chị!