I find that Discover is very good for this. A year ago
August/September my teenage son went through a major growth spurt and
nothing fit him for school. I think we spent in one day about
$400.00 between 3 – 5 stores. I had a message on my machine by the
time I got home for the same reason. I don’t use my card very often
and then multiple purchases in one day was a red flag for them.
april