April 28 (Reuters) - Playtika Holding Corp <8II.F>:: *PLAYTIKA HOLDING CORP - ON APRIL 23, ENTERS FOURTH AMENDMENT TO CREDIT AGREEMENT, DATED AS OF DECEMBER 10, 2019 - SEC FILING *PLAYTIKA HOLDING CORP - REVOLVING CREDIT FACILITY DECREASED FROM $600 MILLION TO $550 MILLION - SEC FILING