Bad and horrible service from Teffo and shell garage in soweto

On Saturday i went to Luvuvhu St, Dlamini, Soweto Shell petrol station to pour petrol but i was using a gif voucher card that has a pin and a chip, when i was making the payment thats when i was told that Shell garage doesnt take or accept gift vouchers - this is the first time hearing this and there was no notification anywhere within the premises in order to avoid such, the guy by the name of Teffo took my car keys and i had to stay in the car with open windows with 5 year old child in that cold weather because i couldnt make alternative and i didnt have a phone with me, later i was forced to leave my car spare wheel then risk by driving a car without a spare just because i couldnt pay pertrol of R100 as i had R50 hard cash with me - im so disappointed to be treated like a ******** in front of my child