Yes, i know but they still have a minimum payment in 2016 for $500,000:
Convertible Promissory Note to Tonaquint
Commitments for future minimum principal payments, by year, and in the aggregate, to be paid under such convertible note as of December 31, 2015, are as follows:
Principal
to be paid
2016 500,000
2017 475,000
Total $ 975,000