Selective distribution of BP petrol stations just before petrol increase

I have seen an alarming pattern at the local BP garage that every time just before there is a petrol hike for over a year now, they suddenly don't have petrol. After speaking with Ciska at BP Nigel she told me they have been dry for over a week now (why are you not supplying them with stock?). It may be true, it may not be true. I will never know. What I do know is that the locals here are getting fed up with wanting to support them because with a PnP card you get points, but when you want to gain points by filling up just before the petrol increases, you cant because there is no petrol. I want to know why BP HQ doesnt supply BP Nigel timeously with petrol. Why are other towns and cities more important than ours? Have you any idea how many people live in Nigel but travel to Johannesburg for work, so they need petrol and we prefer to support our local petrol station because local is lekker. Selective distribution (or corporate sabotage) is what I see when I evaluate the evidence I have. Do prove me wrong.