Contact form captcha mod , hide submit button

[simsydney]

hi there ,

i have installed captcha plug in from here

then i test it and now the submit button compare on the screen for has sec and then disappear.

 

then i have uninstall it but the problem still there

 

 

 

here's the website page:

http://www.amtlaser.com.au/index.php?controller=contact