Try for some photos to upload. Otherwise we are just guessing.

I tried to insert a photo in the original post but it did not work for me. Since posting I have done quite a lot of searching on the net and am confident it is a Variegated Spotted Gum (Eucalyptus maculata ‘Imagine’) Brian DJ

I tried the photo again, hope it works.

Very interesting. It must be a natural mutation? I looked up the new release plants and the breeding of the "Ribbon of Hope" cultivar has taken a long time. And they are just released at my local Bunnings in Qld for $53 a plant. Don't let anyone whippersnip yours!!!!!