I just bought my 2nd Sovtek big muff in the last two months ..The first one wouldn’t allow a signal threw when turned off and i bought it online and only had a paypal receipt so the warranty was no good..The new one i bought from guitar center doesn’t have a warranty card in it so i need to register some other way then mailing in the card can someone tell me how to do this..It is my understanding that the russian big muff has been discontinued so i defiantly need it warranted.