Terrible attitude and horrible service

I purchased a boot online and it was too big so I took it to donna Claire in the pavillion because on the email I received said I could return at any store for refund or exchange when I arrived in the store I stood in line for about 10 minutes before the other cashier came to assist me I told her my problem so she asked me what I wanted her to do so I said can't you check your other stores for stock she told me it would cost R70 to itb it from another store I said that's fine so she checks the system and sees that they have 1 in stock but it's set aside for a customer(sale item) so I asked how long do you guys keeps stock for customers she told me 1 day so I said if the customer doesn't come can you call me and let me know she didn't seem to interested in that and did not even take my contact details she then continues checking the system asking us where are the stores surely it should tell you on the system the name of the store she then sees a store and goes to call them but she needs a code to call out and asks the manager at the desk she tells her to call the other lady who is on the floor whilst the one she asked is right next to the phone anyway the other lady puts the code and she calls the store who tells her it's sold out she comes back and tells me by this point I'm fustrated she doesn't even try to call another store so I tell her to just refund the item.i want them to find me that boot and contact me so I can purchase it their service is appalling!!!!!!!!!!!!