can not put gas in car

Hello, wow, a repair shop charged you to fix something that didn't resolve the concern -- and then said didn't know what else? Sounds like you need to find a new and better shop! Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops It does sound like a possible evaporative emissions system issue, preventing proper fuel tank ventilation. A good, skilled, qualified technician should be able to troubleshoot and resolve this.