Does you letter had names of both principal applicant and dependent applicant?Letter on principal applicant name covers both applicant and any dependent/accompanying member.
No separate letter for dependent . We used same letter for submitting passports of both applicants at VFS and our passports are stamped.
Under Step 2 (a) It says "you will need to submit original passport(s) for you and each accompanying family"-
Later in letter it says "Two (2) photos of yourself and of each accompanying family member"