<prompt> Human: We have found share certificates that were purchased in 1991 for ManWeb UK Power company. I have since found out that Manweb was sold to Scottish Power in 1995, and there was a subsequent takeover bid in 2006 by a Spanish power company Iberdrola. I have no idea where to start about finding out if the shares are still valid or selling them.  <response>: Theres some contact info here that should help - 