Text exact alignment in a shape

[al.da.drone]

Hi everyone
Not only do I struggle with the more complicated tasks in Gimp but I'm trying to do something ever so simple.

I am trying to put text inside a edited ellipse circle. I have attached a screenshot of my feeble attempt
It seems that the top half of the text is on the large side...I have used the align tool to centre the text but it seems to have failed.
Is there a simple way of doing this.

Thanks