bad attitude

On friday 24 july 2015 my friend purchased omo with the vouchers when his friend entered the store he was told by manager shafiek if i knew its for you i wouldnt ve have put it through and cancelled the transaction.after a huge arguement he left the store. The next day my aunt went with the same coupons which the store said its still valid the owner charl fourie banned my daughter and aunt from the store and kept my vouchers which amounted to r960 worth. Can the owner do that? He claims 2 weeks prior we tried to purchase groceries but we purchased groceries and washing powder and when his manager said we cant do that then i paid in cash for my goods.<br> I want my vouchers back because he has no right to confiscate anything that doesnt belong to him and i want it in vouchers that i can use in a store not thats cancelled by him because the sale went through and i wont be able to use those again because his manager has issues with my friend