Smaller portion smaller change

I have been supporting Burger Box since 1910 and I love Burger Box. I support them at least three times a week (Vereeniging Branch) and I must say that today I ordered my usual toastie and when it arrived I was disappointed as I paid the same amount everyday for the same toastie but today I paid for a toastie that I could have made myself... this was a normal sandwich,,,if I wanted a normal sandwich then I could have made it at home. Please ensure that you keep to your standards or either reduce your price, If I had a choice of the amount the sandwich was worth then R20 would have been too much.