Dell DFS peferred account 6 mo special financing Austin Texas

 I have a Dell Prefered Account and have never missed a payment. I purchased 2 Items one came and the other had not come in 2 weeks so I cancelled the 2nd item. Dell had processed my account by then they had added these 2 items 2 one saying that my last purchase was placed on a 6 month special financing. Even after cancelling the second item which now makes my purchase under the $699.00 amount to qualify for the 6 month special financing. I tried to explain to 3 different agents as to why would I want to pay off the special account in 6 months when I still owe 1,800.00. They said after many contacts the will not help with this problem. Man what a ripoff at 30%