Stingy Citibank

Why is it that Citibank offer you less when you give them more?

I would have thought that when I transferred more UK pounds into US dollars,
I would get a better exchange rate - not a poorer one!

For example - I just tried to exchange £100 and was offered $199.70.
2 seconds later, I tried exchanging £200 and was offered $399.39 - i.e., a
cent less than if I had done two transactions. Obviously this isn't much,
but the point is, since I'm exchanging more money, I would expect a better
rate - not a worse one.

I asked Citibank how frequently they update their exchange rate and they
told me it was every 15 minutes - so the difference wouldn't have been due
to that at the time I tried it. It seems to boil down to the fact that
Citibank, really are stingy!

Has anyone noticed this phenomenon / business practice before?!


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