Hello, there is no purchase with the mail address you used to register here in the database of your eCommerce service MyCommerce unfortunately. Not even a failed one.
If you used another mail address for purchasing, please let me know it, so we can check your order status.
Apart from that: unless your credit card or PayPal account was charged shortly after the order, which you can verify by checking the account, you can safely assume that it didn’t succeed.