Miladys ********** account

On the first week of June I received a call from Miladys asking for the payment ,to my surprise as I don't have any clothing account and I don't even shop at Miladys,I just assumed that that person needed my information so I dropped the call and decided to call Miladys customer care of which they confirmed that I am owing them close to R9000 and I asked for ***** department email address of which they gave and I sent them the docs as per their advise.waited a week and there was no answer,I phoned them again and they said they gave me an incorrect email address and they gave me another one and I emailed again but no feedback up until today.How long does it take to give somebody a feedback?