There's a lot of reasons as to why you're not getting clicks, unfortunately there's no one solution for this kind of problem except to keep testing, which can result in either a loss or profit.
Advertising is not as easy as creating a few FB Ads campaigns and then WALLAH. You also need to know stuff like copywriting so that you can be able to come up with compelling titles, description and a strong call-to-action. Images are very crucial when it comes to FB Ads as well, so it's all about split testing till you find what works best.
HOWEVER...
...I'm not sure if it's a good idea to promote wordpress templates and web hosting offers via facebook Ads, I would rather focus on smart forum marketing, guest posting, press releases, seo, sponsored posts on high traffic blogs/websites etc. for these type of offers.