Datareader and class issue

Can anyone tell me why I'm not getting any data returned to my readers in this class?

If I do this in a code behind of a page the readers are getting data.Imports Microsoft.VisualBasic
Imports System.Data
Imports System.Data.SqlClient
Imports Karamasoft.WebControls.UltimateEmail

Public Class SystemAlerts
Public Shared Sub SendAlert(ByVal Client_ID As Int32, ByVal PaymentAmt As Decimal)
Dim mailMerge As New MailMerge
Dim MyCommand As SqlCommand
Dim dtrGAD As SqlDataReader
Dim SelectGA ...