我们非常感谢本次交易和……
We appreciate your business and...
We appreciate your patronage and...
……还有对贵方的友好表示感谢。
..., and wish to thank you for your kindness.
我们非常感谢你们提供的意见。
We would appreciate receiving your comments.
We would appreciate it if you could send us your comments.
我们非常欢迎你们提出宝贵意见。
We shall be interested in receiving your comments.
We shall be interested in hearing your comments.