I received my HOA letter on 1/05/2019 stating my H...

I received my HOA letter on 1/05/2019 stating my HOA annual fee due 1/01/2019. Letters in the envelope are dated 12/03/2018 and 12/21/2018. Have been emailing and calling Heritage Property Mgt, no one is answering as well you can not leave a voice mail as their boxes are full. Yet I received emails stating they are aware of the issues, and 30 day grace period has been extended to 2/01/2019. If anyone else having this issue.