I have a very well followed and populated youtube channel with all video clips being credited at beginning and the end. Another channel is taking my content and removing the credits from beginning and end and then uploading it to there own channel. We do not mind embedding and sharing at all as it is all credited for the brand...but to cut the credits and show it as your own must be a copyright infringement.....what is the best way to deal with this as the owner of the channel is not responding...thank you