To get replacement components for jyetech kits, email email@example.com
with the details and then you receive an invoice for the item that can be paid via PayPal. There is a £5.00 shipping and handling charge per order.
I messed up a slide switch as used in their digital oscilloscopes and an email to firstname.lastname@example.org
brought a quick reply. Great service!
Jyetech have a forum for their kits etc at http://www.jyetech.com/forum/index.php