PLAYSON has penned a content agreement with Sellatuparley, Venezuela's leading sports betting and casino operator. [HOST] sites. “We are beyond. PLAYSON has penned a content agreement with Sellatuparley, Venezuela's leading sports betting and casino operator. “We are beyond. [HOST] sites. . PLAYSON has penned a content agreement with Sellatuparley, Venezuela's leading sports betting and casino operator. [HOST] sites. “We are beyond.