It is so important and imparative that you respond to your planner, caterer or whomever you have hired for your event. Dodging a call, email or text could end up costing you more in the long run. If those you have hired have contacted you on several occasions and you have not responded, you maybe putting your event and contract in jeopardy. And at no fault of their own the venue or vendor would feel better in cancelling your contract rather than put their business in jeopardy. Keeping in mind buinesses have a reputation to uphold; and would be well within their rights to cancel your event due to such avoidance. Such avoidance would portray the inability to pay for services that have already been planned or rendored.