diff --git a/controllers/authController.go b/controllers/authController.go
index 51914e3..8387c95 100644
--- a/controllers/authController.go
+++ b/controllers/authController.go
@@ -170,6 +170,7 @@ func RegisterTeacher(c *fiber.Ctx) error {
 	// Send teacher personal email temp password
 
 	var tid string
+	// For the unlikely event that an ID is already in use this will simply try again till it gets a id not in use
 	for {
 		tid = GenerateID()
 		isValid := ValidateID(tid)
diff --git a/controllers/idManager.go b/controllers/idManager.go
index cae08fb..38c64d7 100644
--- a/controllers/idManager.go
+++ b/controllers/idManager.go
@@ -22,7 +22,7 @@ func ValidateID(id string) bool { // true: valid id, false: id already in use
 	var foundID models.Id
 	err := idCollection.FindOne(ctx, bson.M{"cid": id}).Decode(&foundID)
 	cancel()
-	if err != nil {
+	if err != nil { // If there is no id found create new ID object to be stored and return true (unless insert error then try again)
 		var newID models.Id
 		newID.CID = id
 		newID.ID = primitive.NewObjectID()
diff --git a/models/idModel.go b/models/idModel.go
index 976d882..fd45ad7 100644
--- a/models/idModel.go
+++ b/models/idModel.go
@@ -4,6 +4,16 @@ import (
 	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
+/*
+	This is a stupid Idea but in the cids collection
+	is a list of all id's (student id's [sid], teacher
+	id's [tid], or admin id's [aid]) this way when
+	generating a new id for a new user, only the cids
+	collection has to be searched to see the id is
+	already in use. Rather than looking in the admin,
+	teacher, and student collections to check an id.
+*/
+
 type Id struct {
 	ID  primitive.ObjectID `bson:"_id"`
 	CID string             `bson:"cid"` // custom id for admin, teahcer or student
diff --git a/models/studentModel.go b/models/studentModel.go
index 7086a26..4bed5cf 100644
--- a/models/studentModel.go
+++ b/models/studentModel.go
@@ -30,7 +30,7 @@ type Student struct {
 	Address      string             `json:"address"`
 	City         string             `json:"city"`
 	Province     string             `json:"province"`
-	Postal       string             `json:"pc"` // Postal Code
+	Postal       string             `json:"postal"`
 	DOB          string             `json:"dob" validate:"required"`
 	Photo        string             `json:"photo"`
 	Contacts     []string           `json:"contacts"` // List of contact ID's rather than contact object
diff --git a/models/teacherModel.go b/models/teacherModel.go
index 525a62a..0110685 100644
--- a/models/teacherModel.go
+++ b/models/teacherModel.go
@@ -32,7 +32,7 @@ type Teacher struct {
 	Address      string             `json:"address"`
 	City         string             `json:"city"`
 	Province     string             `json:"province"`
-	Postal       string             `json:"pc"` // Postal Code
+	Postal       string             `json:"postal"`
 	DOB          string             `json:"dob" validate:"required"`
 	Photo        string             `json:"string"`
 	Created_at   time.Time          `json:"created_at"`