Poor customer service

They treat me like hell. Day before i used my card day before and the cashier never gave it to me back. The next day i went there they ignore me as i doesn't exist. After 30 minutes when i started shouting they said they are trying to find a teller as she left with my card. I don't know the teller but i only know impuphu wholesaler. Is not safe to use credict cards there as the tellers have allowance to leave with clients card