SCAM!!! Placed an order in February 2023. Have not received unit or a refund. Refund process requires me to give them the "Seed Phrase" for my crypto wallet. BUYER BEWARE! Followed up on status of order with Unigrade in May (3 months after order). Response was "Your order arrived from the manufacturer (In April). Due to high demand, the time for sorting and shipping of the orders may take an additional few days. So, we will provide you tracking number as soon as possible". I have never received a tracking number. Folllowed up in August 2023, received the following response " We would also like to take this opportunity to apologise for any inconvenience caused to you. Your backorder(s) has been cancelled by manufacturer, to receive a refund, please fill out REFUND REQUEST form......" 
Refund request requires that I supply my crypto wallet SEED PHRASE, which I will not reveal as it hands them access to my wallet. I have now emailed them two more times as well as tried to use their Chat Bot. No response form any of these efforts. Also the phones are not manned. Date of experience: May 05, 2023