False Registrants...still Virtuemart 2

[toad78]

VM 2.0.2b
Joomla 2.5.x

I'm still experiencing a problem with false registrants. I probably receive 10 a day and it's getting rather annoying that no matter what settings I use, there still doesn't seem to be a solution to fix this problem.

Virtuemart settings: users do not have to register and they can check out as guests

Joomla settings:
reCapthca is being used
Allow User Registration
New User Account Activation: Self
Captcha: Captcha-Recaptcha

This site has already been recreated to supposedly 'fix' this problem and yet it is still occurring.

So how to fix?