Join Date: Apr 2006
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You're possibly missing the conversion rates and exchange factors, i.e. it may cost a firm $25 US to "convert" one check or deposit in another currency. (And similarly for others, vice-versa.)
Or, the printed flyers may have been printed a short three or four weeks ago when exchange rates were different, while the web site can be updated weekly or even daily with an automatic script. Or perhaps, your online site was targeted to a UK or EU audience and includes VAT or other taxes that must be charged when the sale is made "in" that locale.
Many merchants will simply absorb any loss when currency fluctuations make their printed materials obsolete. This isn't "discrimination" this is simply seeing two different lists, created at two different times, for two different purposes.