PayPal payment information: if the payment option PayPal is selected, there may be open a window: ERROR Paramenters of PayPal are missing. Contact the shop owner if your payment has been accepted". Until now all payments were accepted, only clients do not get a confirmation. So please be not scared and cancel your order. Pls contact us by mail and we will confirm the payment. Unfortunately PayPal seems not able to tell us which Parameters are missing since March 21st. We are waiting since March 22nd for backcall, but neither PayPal client service nor PayPal technical support gave any sign of life. We will continue to push them to offer support till this problem is solved. But it looks like we were not enough important to them to offer the contractual agreed support. We apologize for any inconvenience and thank you for your loyality and support. If you have questions contact by mail or call 0049 171 211 33 32.