Add a search phrase to existing gmail reader

Current gmail reader script is working fine. Its on my webhost, I need a new search string added to the search file, because the emails I've gotten have changed, and I can't figure out the "logic" to get it to read them. Here are sample lines from the file, to show you the logic it uses: /Member # ([0-9]+)/ /ENJOY \$([0-9\.,]+) IN<br(.*?)>xxxxxxxx xxxxxxxx/ /You have \$([0-9\.,]+) in xxxxxxxx xxxxxx<(\/b|\/strong)> to xxxxxx on (.*?)purchase of \$([0-9\.,]+) or more\./ /YOU HAVE \$([0-9\.,]+) IN xxxxxxxx xxxxxx(.*?)TO xxxxxx ON YOUR xxxxx PURCHASE\./s