Problem accessing subform values

Problem accessing subform values

I have forms with the following structure:

Student
Name
Contacts(Subform)

Contacts
Name
Phone List(Subform)

Phone List
Number

In another form name " Add Phone Entry", I have the following fields:

Student(Lookup of all "Students" in the system)
Contact(Lookup based on what "Student" the user selects)
Phone Number(Lookup based on what "Contact" the user selects)

I am having a very difficult time accessing the subform values. Any help in this matter would be appreciated! Thanks.