If you made software that worked and supported it, I would not complain. If it were my company and I got a One Star rating, I would not be rude to the customer, I would fix it and change it to a 5 star.
I do support companies that support their products by purchasing the professional versions.
It took you two weeks to respond, that is a fact. And that shows a lack of support.
Your software does not work the attached image above proves that. And all you do is say it works.
If this is how you handle people interested in purchasing your products, i can only imagine the support you give once you get someones money.
Are you going to fix it and change the One Star rating, or just rant about it and keep the poor rating?