We bought our tracker and a month later the charging port became damaged through no fail of ours. A replacement was sent which was great. However, four months later the same thing happened again. Tech silver’s response was to upgrade to another device for £177 pound with a £16 discount! They would not send a replacement or refund, despite paying the monthly subscription too. The monthly payment is for nothing. The device works independently of them. If the device is working you never need to contact them, so you get nothing for it. I would tell everyone to avoid this company. The device itself is great but it and the company, cannot be relied on.