Recording the relationship between comments and purchases can give you very good information.
For example, if the comments are at the very bottom, whatsapp canada you can fire an event when someone scrolls to that position.
Do you always check reviews before purchasing?
You can also use a collapsed accordion and record when it unfolds.
Additions to the wish list
The wish list is something I see in almost every online store and, in most cases, I think it is useless.
In online stores where a lot of purchases are made, perhaps.
If the list is publicly purchasable and you have a large catalog, I might consider it, but I'd venture to say that in 80% of cases you'll have a button that doesn't serve any purpose.
Why don't you analyze it?
If you find that no one uses a button, remove it and use that space. Narrow down your options.
Sending contact forms
Ok, I have no excuse here, this one is quite conventional… until I tell you that there is a piece of information that you may not be analyzing: where is the contact accessed from?
In most cases, contact is a menu option.
People usually reach out when they reach a point where they do not want to continue without help.