รบกวนแก้ไขจดหมายภาษาอังกฤษให้ด้วยครับ

Dear Mr John,

Good day. Thank you for your response.

Today I have already sent you product samples (Product A, Product B and Product C).

The tracking number is 1234567890, tracking website is http://www.dhl.com.
And please inform me if you have a receipt tax, I will transfer you via Paypal.


Morover If you have a product comparable or better to its quality, please send to me for trial purpose.

I am responsible for at any costs, preferably via Paypal.


I am looking forwards to hearing from you.


Best regards,