Thank you for your review, Dr. Bonev. Sorry to hear you're disappointed.
To process a return and refund, we do need to be notified in advance with tracking details and the return address confirmed - without these we have no way of tracking an inbound return. We haven't received any notification from you on this.
Please do get in touch directly with your tracking information and we'll get this resolved promptly. All refunds are processed immediately once a return is confirmed.