Thank you for your patience.
We are sorry to read that the doors open accidentally :( When the cabinet is on an equal floor and you have followed the assembly instructions correct the doors shouldn’t open by accident. We hope you have found a solution. If this isn’t the case we recommend you to check the steps in the assembly instructions thoroughly. At step 34, 38 and 39 you see that you need to turn a part with a screwdriver. Have you turned all four parts?
Otherwise, we recommend you to return the product with your receipt to the IKEA store. It could be a production mistake. Our colleagues will see what they can do for you. If the item is brought to you by IKEA transport, we recommend to fill in the following contactform: http://cccnservice.ikea.com/direct.aspx?ug=4&N=1690
If you currently or in the future have questions or complaints, we recommend contacting our colleagues from the IKEA customer service, by one of the following direct contact channels: http://www.ikea.com/ms/nl_NL/customer_service/contact_us/contact_us_intro.html
With kind regards,