Request for Sketchup Pro 2018 installer for mac osx

Please help! I had to format my macbook pro and have lost Sketchup 2018. I am unable to find a download on the Sketchup website for this version (can only find 2017 and 2019). My ‘buildingpoint’ rep has advised to request an installer through this forum. CanI be provided a link please?

THANK YOU! Worked perfectly!