Manager chase ex worker away from vodacom business

I have worked at vodacom before as a employee but now when I go to shop and greet my friend the manager chase me away and I still do business with vodacom I have an existing account so please help us to know where should we do with the account I have am I not allowed anymore because I resign there she complain about me eating fruit inside the shop she says it not a kitchen are we not suppose to eat inside where is the sign for that I resigned becouse of personal reasons I did not steel or ***** the company I lost the store phone and let them know so why am I not welcome anymore my contract is due now and I have fiber problems as well where must I resolve that