Facebook post showing sample text

When posting in facebook I am getting sample text showing beneath the image from the home page. Does anyone know where this comes from and how to get rid of / change it?

I guess this might show in other places where the page is linked also.

Thanks, James.

Hi James,

I hope you are well today and thank you for your question.

Could you please share me the page URL from your site which if shared on facebook displays this text so that i can troubleshoot it?

Kind Regards,

Hi Movin,

Plungepictures.com.au sorry I thought I had included that.

Regards, James.

I could confirm the issue on your site but it changed when i deleted the facebook cache from Sharing Debugger - Facebook for Developers

Now you can see the facebook is fetching text from your site and not default one.

Also you can change it by using the below CSS code as described here http://kb.yoast.com/article/219-getting-open-graph-for-your-articles