guys is it okay to send the form 5669 to them since they just received my application this mornign? I put gaps on the form 5669 like 2 months gaps. if ao, where can I send it through email or mail? anyone who experienced this?
if they received your app this morning , then i would send it now.
you can write a simple letter to explain and your spouse's UCI no. ( if she/he has from previous visa)/
or
you can put the date CIC received your app and name of sponsor and being sponsored person.