Can't Identify Plant [Lime Leaf]

I have a plant that I can't identify. I'm quite sure it's from my last order at your place. Would you still have info. on what I ordered (around last spring)?
I enclose a photo of the plant. It is now more that a foot high and has long, hard thorns. Another picture will be enclosed with a separate message.

This is a citrus, probably Citrus hystrix, the lime leaf of south east asian cooking. We are working on this plant for future introduction in our catalogue. Currently we only offer plants sporadically in our greenhouse for customers who visit us in Goodwood. So, unless you came to Richters and bought the plant personally, you did not get it from us.
Your plant is clearly chlorotic (yellowing) which is due to a lack of iron or nitrogen.