mainly because of mining, i bought mine for 250 2 years ago.

Mining boom mainly. Here are more reasons: https://youtu.be/x70ew-R4NA...

is it lhr ?

also ordered once! Delivery does not follow despite reminder. I very much question the seriousness of the supplier.

This is probably the same reason as described under Important Information on the product page.

PS: https://www.digitec.ch/de...