Bo Bichette of the Mets. AP The Fanatics Sportsbook promo code NYPOST is available for readers of The Post to use on Saturday’s clash between the Mets and Angels. The Fanatics promo code NYPOST: bet $20, $200 FanCash welcome bonus can also be used on any other market on the sports betting platform. The Mets were expected to be a contender in the National League, but they’ve endured a nightmare start and now have plenty of work to do to get back into the mix. Fanatics Sportsbook promo code NYPOST for Mets vs. Angels New users registering with the Fanatics Sportsbook promo code NYPOST will get $200 in FanCash right after their first $20 bet. In addition to that offer, the Fanatics sportsbook promo code NYPOST gives new users the chance to get a match of up to $1,000 in FanCash . FanCash can be used to wager at Fanatics sportsbook, buy Fanatics apparel from their online shop, or purchase collectibles.…