NO CHICKEN WHEN IT WAS THERE ON THE SHELF

on Saturday 21/03/2015 I went to buy a chicken at about 20 min before closing time and was told that it is reserved for a customer who ordered on line. I asked to see proof of that as I saw that it was not marked reserved or bought. I then asked for the manager they called Thulani who said he cant help for the same reasons but failed to prove it. I said I was there physically to buy and I saw what I need but I cant buy it, am I not a customer as well who needs to be served. I asked him to send me the details of my complaint on Monday as he said he will take it up with a senior manage on Monday then get back to me. I feel I was not treated fairly by the ladies behind the counter and him as they failed to help as a customer. what irritates me worse is a person not keeping up to his promise. I love my Woolworths chicken. what is the time frame for an online order to be collected as I was told that order was placed in the morning and I went towards the end of business day but it was not picked up and I was there to buy it.