帮忙翻译

Did I do wrong? Because I issued the invoice myself, and the price is also done according to the order.
这里先前应该就是表示过去的时间，所以动词用过去式就可以了。
做发票也就是开发票，英语是issue an invoice。

Am I wrong ? because the former invoice is made by me and the price is according to the order

Did I do wrong, because I have previously invoice, the price also is done according to the order.
按你书面的形式翻译的。

Maybe I'm wrong,because all of the former invoices are made by myself and the price is according to the order .

Am I wrong?Since the previous invoices were made by my own,and the price are made due to the orders