Save Supermarket manager

I was told that I'm no longer welcome to enter the store without a reason so my thoughts is that , the manager hate me because I worked for him and I left the job last year December, please if you can reach to big bosses, please do ask them is that how they treat customers at Save because since I wasn't working for anymore, I came there as a customer..I'm still hurt by what they did to me in fact Save Supermarket manager, he's the one, who told securities not to allow me..