Please implement more consistent prices for shops withing so far of eachother!

Im glad that others seem to be noticing the inconsistent pricing all over the country. I am of the opinion that there should never be more than a few rand's difference from one shop to the next, yet here we are! I go from my home in Boksburg to Pretoria and see about R20 difference in price even though i have only triavelled an hour or two away. It is baffeling!