Child Products and problem with orders

[george13]

Good evening to all friends. Congrats for this forum that everyone can find an answer

I'd like to ask you if you know it below. I've create a website in virtuemart (2.0.20b) with joomla 2.5.17 and I've created one product with child products ( ie clothes ) eg
3 years
4 years
6 years

When I place an order eg. 3 years it's okay. Normally removed the product (3 year) from the front end of the website and the back end of the website. ie into the product in the condition of the product where it says Booked, ordered products the number is 1 that means someone bought it.
The same thing happens when someone has bought 2 products. When someone buys 3 products is the problem. The third product is not removed from the system and where it says Booked, ordered products the number zero.
Can someone tell me what is happening;

The website is www.paidikarouxa-bellino.gr

like the system allow only two orders to remove child products

Thank you very much