Hi Lukaszkkk,
Check warranty status of the laptop: http://dell.to/13VPd97
Click the above link and enter the service tag of the computer to check the warranty.
Refer this link: http://dell.to/17newbJ
If the system is covered with international warranty, please private message me the Service tag, contact number, registered owners name and address.
To private message, click my user name and click Start conversation.
In case of expired warranty scenario, we would not be able to extend warranty entitled services.
If the warranty on the computer has expired, below link would help you in contacting expired warranty services (this is for UK based customers):http://dell.to/15ks4h6
Awaiting your response!