I changed my mind I have the right to

Hone choice won't let me change my order from hp to cash. That say I must return the things do that they can reprocess the order. When I asked for a supervisor I was kept holding for long only to be told there were no supervisor available. They are offering me an early settlement but I want a cash transaction. It has not even been 10 business days. I received my incomplete order on 15 Dec then the rest on 18 dec. I think they just wanna charge me interest of finance charges. I want cash and delivery fee only.