Email formal, necesito ayuda

[Allure]

He comprado entradas para ir a una convención pero no me han enviado el email de confirmación así que, como mi inglés no es para tirar cohetes, prefiero enviarles un email a llamar por teléfono. Esto es lo que tengo:

Dear Sir or Madam,

On March 16 I purchased two tickets (Preferred/Silver weekend package) for the XXXXXXXXXXXX. I had to purchase them for separate because I paid with two different credit cards and used different names (One for me and the other one for a friend). Not five minutes later I received an order confirmation for my friend´s purchase, but I didn´t get a confirmation email with the order confirmation number for my own ticket.
I checked my bank account and my credit card has been already charged.

Should I keep waiting for a few more days? Or maybe, could you please email me the order number?

The order number of my friend´s purchase -wich I did right after mine- is XXXXXXXX, if that helps.

I would like to know if this can be fixed or no, so I would be very grateful for your response.

Thank you for the help and kindness,
XXXXX XXXXX XXXXXX


¿Qué tendría que corregir?? (Las XXXXXXXX obviamente son datos personales )

Gracias por adelantado.