You can make a payment via payment cards. With the cooperation and support of Banca Intesa, we have indicated to you all types of payment cards we accept. You can make the payment in any currency, the bank will charge the transaction in RSD currency (equivalent to the price indicated in Euros). Citizens of the Republic of Serbia have the opportunity to pay via payment slip.

Unless specifically stated on the product website, there is no money back guarantee or refund available. Products and services are purchased on a pre-paid, non-refundable basis.

No software, educational products, subscription services, pdf’s and video content – made available either as paid-for products\services or complimentary products\services – from the System Option website (or any of its associated websites) may be reproduced, distributed, or transmitted in any form or by any means, including copying, recording, or other electronic or mechanical methods, without the prior written consent/permission. For permission requests, write to


Any unauthorized distribution, copying or syndication will be viewed as an infringement of copyright, and will thus be treated as a criminal act and reported as such to the relevant authorities.

In no event shall System Option be liable for any damages whatsoever, and in particular shall not be liable for special, indirect, consequential, or incidental damages, or damages for lost profits, loss of revenue, or loss of use, arising out of or related to any website or the information contained on it, whether such damages arise in contract, negligence, tort, under statute, in equity, at law or otherwise. You also acknowledge that System Option cannot and does not guarantee or warrant that files available for downloading through the Service will be free of infection or viruses, worms, Trojans, or other codes that manifest contaminating or destructive properties. You are responsible for implementing sufficient procedures and checkpoints to satisfy your particular requirements for accuracy of data input and output, and for maintaining means external to the website for the reconstruction of any lost data.

You assume total responsibility and risk for your use of the website and the Internet. System Option does not make any express or implied warranties, representations or endorsements whatsoever (including, without limitation, warranties of title or non-infringement, or the implied warranties of merchantability or fitness for a particular purpose) with regard to the website, any merchandise, information or service provided through our website or on the Internet generally, and System Option shall not be liable for any cost or damage arising either directly or indirectly from any such transaction. It is solely your responsibility to evaluate the accuracy, completeness and usefulness of all opinions, advice, services, merchandise and other information provided through the website or on the Internet generally. Some jurisdictions do not allow the exclusion of implied warranties, so the above exclusion may not apply to you.

System Option shall not be responsible for any errors or omissions contained at this website, and does not warrant that defects in the website will be corrected. System Option reserves the right to make changes without notice, and disclaims any responsibility for providing notice of such changes. In no event shall System Option be liable for:

(1) any incidental, consequential, or indirect damages (including, but not limited to, damages for loss of profits, business interruption, loss of programs or information, and the like) arising out of the use or of inability to use the website, or any information, or transactions provided on the website or downloaded from the website, even if System Option or its authorized representatives have been advised of the possibility of such damages;

(2) any claim attributable to errors, omissions, or other inaccuracies in the service and/or materials or information downloaded through the website. Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you.