Bad Customer Service

I have place an order paid for it on Monday, i literally had to call just to confirm if they did receive my payment as i have not heard anything from them, before they use to call me saying i have not completed my application do i need help completing the application but now that i have paid they don't call me and advise when are they going to deliver or ever send an invoice. i just want to be refunded i would rather go to the bank than having with this.