HelpKit allows you to connect a wide range of contact providers to the Contact Us button. If you want you can also set a custom link for the Contact Us button. This is especially helpful if you want to provide help via WhatsApp, Telegram or a simple mailto email link.
Examples for Custom Links could be:
https://wa.me/51923565757?text=Hey! This message will get populated into your WhatsApp
mailto:firstname.lastname@example.org?body=Hey! This message will get populated into your email client