Profile Jeff Jeremy Gender: Man State/Province: NJ City: Newark LinkedIn page: https://www.linkedin.com/in/jeff-jeremy/ United States Web developer Slotsspot Hi! My name is Jeff. I work at Slotsspot as a web developer and member of the online gambling expert team. I investigate the popularity of payment systems in online casinos and slot machines. Mastercard casinos are among the most popular gamblers. Last activity: on 18/06/2020 Joined: on 18/06/2020 https://slotsspot.com/payments/mastercard-casinos/ jeffjeremy6 Design quotient Earn DQ points by participating in a challenge. What are (DQ) Points? DQ points are a measure of your contributions, they correspond to how active you are in the Research, Ideas and Evaluation phases of a challenge.