Bad service

Returned a product that was bought 3 months ago with a security tag on it to have the tag removed. I did not have a slip. Explained my problem to security at the door. Waited 10 minutes for someone to come help. Then I went to customer service. I was told they can not remove it. Ask to speak to the branch manager who I met before in my store I am the manager at Edgars. Waited 10 minutes. I then phoned the store and asked to speak to him. Was told he is in a meeting and cant help. The switchboard then send someone else. This manager then said he first wants to see if his store sells the product. The labels and tag stated Woolworths. I was made to feel like a ********. Maybe because of my Edgars uniform. I buy lunch there every day but now I will go elsewhere. The tag was removed when I said I am going to social media. Disapointing experience.