using coupon

[katzz3969]

I am trying to redeem my coupon for the 15 off a 15 or more order. My order is 15.01 and I put code in CTECH15 and it states I am unable to use it becase Unfortunately, this order total does not meet the minimum needed to apply the coupon. But it clearly shows in littlen how to redeem part, 

$15.00 off your purchase of $150.00 or more in Consumer Electronics, Cell Phones & Accessories, Computers/Tablets & Networking. See conditions

Can you please help I only have an hour left

I am showing it is for 15.00 it clearly says    Your $15.00 off coupon expires in 2 hours