All services within the scope of our teaching, further education, training and education are based on these general terms and conditions. Other terms and conditions of the customer are only valid if they have been confirmed in writing by the IST-Studio (Walter Kafritsas). The same applies to changes and additions to these General Terms and Conditions. Verbal promises and additional agreements require the written confirmation of the management. Please read them carefully. ​


When you visit our Website or send e-mails to us, you are communicating with us electronically. You consent to receive communications from us electronically. We will communicate with you by e-mail or by posting notices on this site. You agree that all agreements, notices, disclosures and other communications that we provide to you electronically satisfy any legal requirement that such communications be in writing.


You can register by telephone, in writing, by e-mail and on the Internet via our booking module. With your registration and its acceptance by the IST-Studio (Walter Kafritsas) or its representatives, a contract and thus a binding obligation to pay comes into effect with the acceptance of the General Terms and Conditions. You will receive a confirmation of registration from us immediately (date of conclusion of the contract or booking). However, the confirmation email is not a guarantee for the course place. Since the number of participants for our seminars is limited, we consider the registrations in the order of their receipt. Your data will be stored electronically for internal purposes and will not be passed on to third parties. Order processing is carried out within the IST-Studio (Walter Kafritsas) with the help of automatic data processing. With his registration, the customer gives his explicit consent to the processing of his data as far as it is required for the order processing by the IST-Studio (Walter Kafritsas). The customer also agrees that the IST-Studio (Walter Kafritsas) may use the data obtained from the business relationship with him/her for business purposes within the IST-Studio (Walter Kafritsas) in accordance with the Data Protection Act.


The fees for attending classes, seminars and training courses are due for payment within seven days after online booking or invoicing. In Spain, VAT is included in the fees. Attending classes or seminars only part of the time does not entitle you to a reduction of the fee. If the payment deadline is exceeded, we are entitled to charge interest on arrears or processing fees for due reminders. 


Cancellation must be made in writing in any case, whereby e-mail is sufficient or via the cancellation option of the booking module. Verbal cancellations are invalid. In the event that classes are cancelled due to a circumstance for which the IST-Studio (Walter Kafritsas) is responsible and an alternative event and/or date is not agreed upon, the IST-Studio (Walter Kafritsas) will refund the fees paid. Further claims are excluded. This does not apply to intentional and grossly negligent breaches of duty by the IST-Studio (Walter Kafritsas) or intentional and grossly negligent breaches of duty by a legal representative or vicarious agent of the IST-Studio (Walter Kafritsas).


All content included on this site, such as text, graphics, logos, button icons, images, audio clips, digital downloads, data compilations, and software, is the property of IST-Studio (Walter Kafritsas) or its content suppliers and protected by international copyright laws. No part of the training documents may be reproduced in any form - not even in part - without our written permission - not even for the purpose of teaching - in particular processed, copied, distributed or used for public reproduction using electronic systems. The compilation of all content on this site is the exclusive property of IST-Studio (Walter Kafritsas), with copyright authorship for this collection by IST-Studio (Walter Kafritsas), and protected by international copyright laws.


In our lessons, the exercises are designed in such a way that an attentive participant can achieve the lesson objectives. However, we are not liable for the success of the training. The IST-Studio (Walter Kafritsas) is not liable for damages caused by viruses on copied data carriers. This also applies to public domain software. Any liability of the IST-Studio (Walter Kafritsas) for damages is excluded. This and the foregoing exclusion of liability do not apply to damages resulting from injury to life, limb or health caused by a negligent breach of duty on the part of the IST-Studio (Walter Kafritsas) or an intentional or negligent breach of duty on the part of a legal representative or vicarious agent of the IST-Studio (Walter Kafritsas). The exclusions of liability also do not apply to other damages resulting from a grossly negligent breach of duty by the IST-Studio (Walter Kafritsas) or from an intentional or grossly negligent breach of duty by a legal representative or vicarious agent of the IST-Studio (Walter Kafritsas). The exclusions of liability also do not apply to the violation of contractual cardinal obligations.


The seminar or class instructors reserve the right to make photo, audio and video recordings in the course of the event and to use these for teaching and demonstration purposes. If a participant wishes to be excluded from these recordings, this wish must be communicated to the course leader at the beginning of the class. 


If you use this site, you are responsible for maintaining the confidentiality of your account and password and for restricting access to your computer, and you agree to accept responsibility for all activities that occur under your account or password. If you are under 18, you may use our website only with involvement of a parent or guardian. IST-Studio (Walter Kafritsas) and its associates reserve the right to refuse service, terminate accounts, remove or edit content, or cancel orders in their sole discretion.


The contractual relationship shall be governed by Spanish law. If the conditions for the conclusion of a jurisdiction agreement are given, the parties agree Torremolinos as the exclusive place of jurisdiction for all disputes arising from this contractual relationship.