Horrible online payment system

I made a order online, and I used the online payment, I then received an email confirmation for payment received. A few days later I received an email that I must make a payment for my order which I paid and received a confirmation for. I just ignored because I knew I made a payment, I had two orders and received both emails for the orders.

I called home choice when only one order was delivered and I was told that they did not receive any payment for my order I must call my bank and request a proof of payment. The bank could only provide me a bank statement because it was an online payment they can't have the bank account and all the references used on the order.

I'm very disappointed with your website that it would receive money from customers and not be able to locate and no one can help me since I don't have proof of payment that shows reference number and their account. For my bank to reverse that money I must wait for 3 months. It's almost winter I bought kids blankets and now I must see how I buy those blankets again.