今天刚收到移民局的回复说是收到了邮寄的资料，信里面有提到
Please note that the following documentation will be required for your sponsorship application to determine whether you meet the minimum necessary income requirements to sponsor a parent or grandparent. In order to minimize processing delays, if not already included in your application, please obtain and submit as soon as possible:
A completed and signed authorization form – IMM 5768 - Financial Evaluation for Parents and Grandparents Sponsorship providing your Social Insurance Number.
这张表记得当时是一起递交了的。请问大家都有收到这种信吗？这只是普通的remind？如果已经交过了，可以不用管了？