Mr Price Group / MRP review: Wrong order received from store

I went into mrp home promenade mall to exchange blinds, the one i wanted they didnt have in store but the sales assistant said she could order it online, she then proceeded to do so and let us know once the order arrives, we paid etc and waited for our order, when we received an update to collect we got home and it was the wrong colour, im irritated at this point because now i need to wait again for another exchange to be done through the online side of mrp home!