常犯商業英語錯誤

以下句子有什麼錯？可以指出來嗎？

1.I am writing in respect of……

2. We would like to regret the inconvenience……

3. In ensure you that…..

4. You will receive feedback until next Wednesday.

5. I would like to request some informations.

6. We except all major credit and debit cards.

7. I want you to email me the reports right now.