We just can shake our heads by this review.
This is a free (as in beer) component and we gave tech support anyway.
We gave it not only one time, we checked the site and responded several times to the reviewers emails.
Every time we checked the site everything used to be working like a charm.
So how can we help if the form is working on different browsers.
Probably the person PROVOKED this review of whatever reason.
A fact is that we have gave support for free and couldn't find any errors. If this issue is real the only reason could be a misconfigured server.
But everybody understands that we can not give dedicated support over a long time for free.
If you purchase an advance service subscription you can get more intensive support.
Such reviews let us think about canceling any support for Proforms Basic.
The victims are the community thank such parasitary people.