To exercise the right of withdrawal, you must inform us (rg-engineering, Am Lamnitzer 24a, D-08228 Rodewisch) of your decision to withdraw from this contract by an unequivocal statement (e.g. a letter sent by post, fax or e-mail). You may use the attached model withdrawal form, but it is not obligatory. You can also electronically fill in and submit the model withdrawal form or any other unequivocal statement on our website on Contact Us. If you use this option, we will communicate to you an acknowledgement of receipt of such a withdrawal on a durable medium (e.g. by e-mail) without delay.