Please correct my grammar, thanks

[Zoe2008]

Did this case serious? Sorry, I thought / guess I can handle it, because I have double checked the status with Mr. Wong yesterday and also advised to Clara before I sent her an email. Both of them are told me that this case is simple and should no problem to release shipment for us. Therefore, I did not include your name in my outgoing email. I will discuss with you for such case in further shipment.

 

[susiedqq]

Did this case serious? (I don't know what you mean. Do you want to ask: Is there anything wrong? or "Is there a problem with the case?")

Sorry, I thought I could handle it because I double checked the status with Mr. Wong yesterday and also advised Clara before I sent her an email. Both of them told me that this case is simple and there should be no problem about releasing the shipment for us. Therefore, I did not include your name in my outgoing email. In the future, I will discuss any similar case situation with you.

 

[Zoe2008]

Did this case serious? (I don't know what you mean. Do you want to ask: Is there anything wrong? or "Is there a problem with the case?")

Hi Susiedqq,

Can I say : Is this case serious?

Thanks for your correction

Regards.
Zoe

 

[schmoozed]

Sorry, I thought I could handle it because I double-checked the status with Mr. Wong yesterday; and also advised Clara, before I e-mailed her. Both told me that this case is simple and there should be no problem in releasing the shipment for us. Therefore, I did not include your name in my outgoing email. In the future, I will discuss any similar case situation with you.

Are the bolded suggestions valid?