--Based on the USCIS letter, it seems the joint sponsor and his wife did not complete the I-864A correctly. So, they need to complete a new I-864A carefully and then, both he and his wife need to sign the completed I-864A in the proper signature areas: i.e. he needs to sign his name in Item 31.a. and date in Item 31.b. of Page 4, and his wife needs to sign Item 6.b. and date Item 6.c. of Page 5. They also need to provide a copy of their jiont tax return and W2 of 2019.
八老师，移民局回复多一封信，应该怎么做呢？
本人税不够，找了担保人，是一对夫妻，先生一年的税?????4万五，妻子一年的税有1万八。做好了864和854A。结果收到移民局的以上回复，请问该怎么办？
八老师，移民局回复多一封信，应该怎么做呢？
本人税不够，找了担保人，是一对夫妻，先生一年的税?????4万五，妻子一年的税有1万八。做好了864和854A。结果收到移民局的以上回复，请问该怎么办？
--Based on the USCIS letter, it seems the joint sponsor and his wife did not complete the I-864A correctly. So, they need to complete a new I-864A carefully and then, both he and his wife need to sign the completed I-864A in the proper signature areas: i.e. he needs to sign his name in Item 31.a. and date in Item 31.b. of Page 4, and his wife needs to sign Item 6.b. and date Item 6.c. of Page 5. They also need to provide a copy of their jiont tax return and W2 of 2019.