i do not get it do you

In 2000 I bought 3 lots of trees at $3,000. each.
Total cost $9,000.
In their letter they are only offering $7,095.
We have patently waited 8 years, only 2 years to go?
The $9,000. should have compunded for 8 years at least.
My trees are looking pretty good now and I would like to see them and my 10 year investment to fruition.
Can anyone tell me why they are offering me less than they originally put into the investment? I hope someone can help.