Looks like it was a price mistake. Just got confirmations for my orders but the amount is different that my order amount.
Online order history shows:
Merchandise Subtotal $178.00
Shipping Charges $0.00
Savings -$160.20
Sales Tax $1.54
Total $19.34
Email confirmation shows:
Subtotal: $178.00
Promotional Discount: -$17.80
Shipping: $0.00
Estimated Sales Tax: $1.54
Order Total: $161.74