Bad attitude and poor quality item

I bought a top at Foschini Cresta and after two wears it has started to pull. Quality not acceptable. Tried to return it today at Cresta branch. No slip as I had intended to keep the item. My complaint and request was met with absolutely appalling behavior from the two staff 'in charge' of the shop today. Their response: no slip no return. My response: I am not leaving until you offer me a solution. At which point the two managers disappeared into the back office and literally left me standing at a till. After about ten minutes I insisted on seeing the manager again. She informed me she was trying to reach a regional manager. So there was no one in store or contactable to deal with my complaint. Two people in charge that were happy to hide out in a back office while their distraught customer stands endlessly waiting for assistance. And no depth of understanding from a 'manager' that I did not have the slip because I intended to keep an item which has turned out to be faulty. No offer of any form of solution. Not even sorry. Just, you don't have your slip I can't help you. Foschini lost a customer today.