Worst experiance ever

Good day. I purchased sneakers online on cyber Monday 27th November. I then had to cancel the order same day to change the color of one pair of sneakers. That same day I redid a new order with change of color for the same price. The money was deducted from my credit card same day of both purchases. With the impression my first order has been cancelled and waiting on my refund. After two weeks of waiting for my refund and second order to be delivered , I then on the 15th December contacted Nike to find out when I will receive my second order and when I will receive my first orders refund. I was told that there has been no progress on the shipping and the agent advised that the order should be cancelled. With frustration I then cancelled the second order as well. I also asked for a update on my first orders refund and was told I should expect the refund by the 12 December and has today im still waiting on my refund. Monday I was told its been only escalated on the 8 and the orders was only cancelled on the 11th and the refund will be processed within 4 business and will be refunded to my account within 7 business days. This morning I chatted to an agent and was told my orders is on hold. I then contacted them and the second agent told me that the refund was processed. Who do I believe and what do I believe. I don't know what to do anymore just to get my money back. I just need help form someone to get my money back. I've been going back and since the first date of requesting my order to be cancelled. Sincerely Washeema Hendricks