I was disappointed to see that you have raised your _______________________'s price by ________% in just the last few ________________. I don't know how you can justify such a steep price increase in so short a time, but I believe that it may be a mistake.
I know that your business advertises itself as being affordable and that it caters to ___________________, a demographic to which I belong. However, I can no longer afford these prices, since I can find the same product for $_________________ at ___________________________________________.
I am sorry to say that I must take my business elsewhere if this continues. You have a very nice establishment and good products, but I just can't justify spending that kind of money.