Bad Service

My name is Nompilo Buthelezi I bought a takkie at Springs mall Studio 88 and I was told to take size 6 I wanted size 5 but then they said it's small cuts when I arrived at home they didn't fit the kid at all I went to Daveyton for exchange as they told me that they have it at daveyton mall (store manager). Daveyton had it but it was on layby I took the shoe back to the store, the store manager called Carnival mall and said they have size 5 in the store. He had he will go there and collect the shoe on Saturday told the manager that I can not come Saturday I will come Monday and he agreed with me that I should come collect it Monday, when I went Monday he said he forgot to go collect it and they said I should look for another shoe I repeated to the manager that is he sure he wants me to take another shoe because I will not add he said he is sure I took another shoe which was R500.00 and he said I must come collect it the following day. I am here he is saying I must add money in order to get the shoe the manager inconvenienced me because it was black Friday and I would never be able to get the shoe else where can you please help. Their big boss suggested I report them to headoffice because I refused to take the refund they inconvenienced me now I can not find the shoe else where for my kid to wear Christmas. Seriously this is painful.