Lost a few channels after code change, please help. St*rV**w

Hi guys. After todays code change (April 10th), i lost a couple of channels that i use regularly and im hoping that there is a way to get them back. The channels were Livingtv+1, More4, and also a couple of movie channels that im not too sure of the names. I have had my St**V**w box for about 18months on the N*L UK frequency and this is the first time ive had problems retrieving channels. After the code change, the channels mentioned were either blank, or they had no sound at all. To try and fix this, i deleted the channels and went to the installation menu and did an automatic scan but the channels never showed up again. I went through all the newly aqcuired duplicate channels to see if the ones i needed were there, with no luck. Thing is, i used this same method with another few channels that had no sound and it worked a treat, so only thing i can think of is that for some reason Livingtv+1 and More4 etc are no longer available, or that there is some other way of retreiving them again. I hope someone can help me out as i regularly use this site for new codes and know how helpful this community is. Thanks in advance, VIPER.