Originally Posted by Seat64A

Many thanks for your advice.

I went to the VBCE in the end; I wouldn't have known it existed had I not posted on this site!

If anyone's interested, this is what I was offered for my USD150:

Scotia Bank CAD154.10

Bureau de Change 151.60

VBCE 157.95

Admittedly, only a small difference but worth ten minutes of my time to investigate!