BP EXPERESS MONTE ON WILLIAM NICOL - DISHONEST AND OVERCHARGE WHEN PETROL GOES DOWN

I filled up my on Wednesday 03/08/2022 when petrol was supposed to have gone down. However only after I checked my bank statement I saw that I actually paid about R150 MORE. It is even more than I paid the last time petrol went up. I took photos of the actual slip afterwards. Can someone from BP explain why I paid MORE after the petrol price went down. the service station is BP Express Monte on William Nicol Drive Fourways JHB