The “contact us” form on a business website is, for all practical purposes, standard. Nearly every business has such a form or an email address on their website, so they can be contacted by web viewers.
Arguments about the pluses and minuses of having this center around getting fake or unwanted input.
However, dealing with a few “bad” inputs or emails is well worth the time when many people want to contact you via a web interface of some type. By not having a contact form and/or email on your website, you do lose potential customers.
For those who already get this, but still don’t get input via their forms or published website email address, here are some things to check.