Poured air in my tank

Mlangeni service station(caltex) in Kwa-Thema is the worst. I went there to pour petrol and guess what my petrol indicator doesn't move. I go back they say no they poured it in, i must wait abit it takes time and give me receipts. I went to another service station and immediately the petrol indicator goes up. When i ask about them i was told they either pour water or they pour air in your tank. The reason to write this review is to warn others not to pour your petrol there. They will **** you and apparently im not the only one.