It's a good thing you provided the attachment; they're not textboxes but frames. As per my previous advice, you could move one such frame into the page header and delete the rest, but the following code just changes the alignment:
Code:
Sub Demo()
Application.ScreenUpdating = False
Dim i As Long, sngPos As Single
With ActiveDocument
For i = 1 To .Frames.Count
With .Frames(i)
If .Range.Text Like "*(??? ## - ??? ##)" Then
sngPos = .HorizontalPosition
Exit For
End If
End With
Next
For i = 1 To .Frames.Count
With .Frames(i)
If InStr(.Range.Text, "Main Accounts Group :") > 0 Then
.HorizontalPosition = sngPos
End If
End With
Next
End With
Application.ScreenUpdating = True
End Sub