Top 9 Viber Sticker Packs to Spice Up Your Chat | Viber
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Viber on Twitter: "@raghugs What do you mean by default stickers? Open a support ticket here and an agent will get right back to you: http://t.co/eU5zlC50qT" / Twitter
Taking First Steps Into Monetization, Viber Messaging App Announces A Sticker Market | TechCrunch