Listed below are our top recommendations on how to get in contact with PosterBoost: Poster Maker. We make eduacted guesses on the direct pages on their website to visit to get help with issues/problems like using their site/app, billings, pricing, usage, integrations and other issues. You can try any of the methods below to contact PosterBoost: Poster Maker. Discover which options are the fastest to get your customer service issues resolved. The following contact options are available: Pricing Information, Support, General Help, and Press Information/New Coverage (to guage reputation).