By Megan Feringa Wrexham boss Phil Parkinson has said his side were “due” a decision to go in their favour after a contentious penalty call in their 2-0 win over promotion rivals Mansfield. The Welsh side powered their bid for successive promotions with a dominant victory at the Racecourse. After a difficult opening half-hour amid volatile conditions, striker Paul Mullin put Wrexham into the lead as he swept home Andy Cannon’s well-worked cross, registering his 17th league goal of the campaign and his 98th in his Wrexham career. Mansfield’s Aaron Lewis saw an effort to equalise whistle wide be…