writing a business letter

[ddtru]

Is it proper to say "we are open to receive suggestions or comments as to how to better improve our service and product."?

I was told that "better improve" is not proper but I have heard it being used.

Also, "we look forward to growing our business together with you." Is it correctly written?

Thank you for your help.

[Tdol]

I'd drop the 'better'- it's unnecessary. In the second, do you need 'together'?