In 2 Corinthians 11 v8 what churches did Paul rob?

In 2 Corinthians Paul is speaking about self-support to the Corinthian church. The word "robbed" is used the same as "took money or wages" to support the corinthian church. The churches that supported Paul included the Philippian church. Paul did not rob any churches. They gave freely to support Paul for God's glory. The problem was that the Corinthian church wasn't supporting Paul; he had to use donations from other churches to pay his way to teach the Corinthians. Paul wanted nothing from no one. He trusted solely on the Lord. In Philippians 4:13 Paul says, "I can do all things through Christ which strengtheneth me."