Interest Booster message could be declined to to various reasons:
- It could be low on quality. We expect the message to be high on content because if the content is low on quality, it will not attract responses.
- It could be vague containing words like 'anyone' 'all' 'whoever', etc which may not show specific interest to intended recipient.
Hence, we invite you to re-work on your Interest Booster sender draft and create a message which will attract responses. Here are some tips: http://help.quackquack.in/solution/categories/19713/folders/31528/articles/13585-tips-for-sending-personalized-messages