Welcome to the Q&A Forum

I would wait a little longer before getting really worried.  Sometimes redirects can take time. Meanwhile, I would make a decision about complaining directly to the infringer or filing a DMCA complaint.  If you are not familiar with DMCA, fair use and copyright, there can be some risk in doing these.  I consulted an attorney about these types of problems when I first started having them.   Now, I usually act on my own to file DMCA and consult him when there are questions. If the infringement is on a strong and wild competitor and I fear retaliation, the attorney might contact them for me.  If the infringement is on a respectable website of importance, I contact them myself and tell them the problem.  They usually respond.  If it is simply a spammer grabbing my stuff, I go straight to DMCA. If you file DMCA and Google approves, things will happen quickly.  Within a few days your request will be reviewed and BAM, the infringer will be gone and your site will usually be back.