The star has tried to renegotiate his contract with the channel to increase his salary, but so far has not been successful.
McCurdy, who did not attend Nickelodeon awards weekend, wrote on his Twitter account "I was put in an awkward, unfair situation.
I decided not to go because it is right and it is just what my mom taught me. "
The star said he was referring to the television and not the scandal for his underwear photo leaked on the Internet in March. At the ceremony Grande received the award for Best Actress.
