Worst manager and experience

I have always experienced terrible service from vodacom. But today was probably the worst experience ever received. After a big mistake on vodacoms' behalf, I went back with a bad attitude with very good reason. The manager refused to help me, had the the worst attitude. Refused to give me his surname, told me to leave the store before he threaten to call security. After forcing me to pay for the second sim swop, because of their slip up! I an disgusted by his behaviour. It was vodacoms fault on his part