Astron Energy

Hi, I frequently fill petrol in my car at Astron Eldorado Park. Every time I put small amount of fuel in my car, I always get a sms from Astron acknowledging the amount filled. Twice now I have filled my car over R1600 of fuel and I don't get any smsses! I complained about it with no acceptable answer. I would like to know is there more customers that experienced the same problem. Thanks