Here ya go, Tower's codes.
If Your Order Totals: YOU SAVE Use Ad#
$100.00 - $124.99 $15.00 010DA
$125.00 - $149.99 $20.00 010DB
$150.00 - $199.99 $25.00 010DC
$200.00 - $224.99 $35.00 010DD
$225.00 - $249.99 $40.00 010DE
$250.00 - $299.99 $50.00 010DF
$300.00 or more $60.00 010DG