I got the Biometric letter for my mother-in-law, but I also got one more email about income eligibility, it says a final decision will be made by the visa officer. not sure what to do .....
Congratulation! yes you need to provide them updated: IMM 5768 E : Financial Evaluation for Parents and Grandparents Sponsorship. They want to check if you still meet the Income eligibility to sponsor your parents.