If we can't fix it, you do not pay.
Not only do I build website, but I fix sites when they break and perform regular mainteance and updates.
In order to fix modern web site you need to know HTML, CSS3, Javascript, jQuery, the and responsive design in order to figure out what it's wrong and how to fix it. I do full stack development from front end to back in so I am familiar with all these technologies
I have often been asked to fix problems that other developers cannot. If I cannot fix your problem, you do not pay. No payment upfront and no deposit required.
Wordpress themes can have bugs in it. We fix them.