A miracle happened, I went to the post office and there was the metal detector, shame the hopeless courier pulled my chain for best oast of ten days. Never left a card. I spent ages on phone and emails trying sort it, eventually made them deliver to the local post office, twice apparently they came to my house, both times i was in. Can't fault seller he did what he said, courier company on other hand worse then useless. Did a small repair tonight and seems work partially so will replace battery