Incorrect order delivered by Woolworths

my girlfriend bought a pair of size 4 younger boy ( meaning age 5 to 9 ) LED light up sneakers for a client of hers, however when the shoes where delivered she received a toddler size 4..... she has contacted woolworths online shopping JHB and advised of the error and requested that the shoes be collected and the correct shoes be delivered..... she has spoken to several consultants and each consultant has requested her to send photos of the shoes which she has done multiple times and the only response that she gets is that the photos have been sent to the warehouse , this has been going on for the hole of last week and this week now, how much time does Woolworths need to rectify a error that was made on Your side........... this is absolutely pathetic and poor service that is being provided by a well known name brand store that is of high class , I mean seriously must this be taken to the Ombudsman, NCR, Consumer tribunal and or the National Consumer Commission, the product was purchased and paid for , yet the incorrect product has been delivered with no resolve so far.