Apps Paystack, OMG Digital and Tress Are Sponsoring 3 Ghanaian Startups To a Lagos Y Combinator Meetup Claude Ayitey30th August, 2017 ERT 4 minutes, 2 seconds Paystack, OMG Digital and Tress are sponsoring 3 Ghanaian startups to a Lagos Y Combinator Meetup, for startups who wish to join a YC batch.