I hate feeling cheated !

I absolutely hate feeling cheated so when it happens involving a business I had accepted as a ethical one I am shocked.
The people concerned are called Lite N Easy and they are a weight loss pre prepared food supplier.
I have been using them for several months and recently saw that they offer a seniors discount of 5%. However they do not make it easy to get it.

Despite filling out a form at the beginning which included my date of birth it seems the only way you can get the discount is by telephone.
You need to call the 1300 number and tell the operator your date of birth! The operator will then apply the 5% discount to future orders.   This discount will only apply to future orders you will not get a credit for prior orders. This has left me with a sour taste in my mouth and I hate feeling cheated but I do !