Unhappy with service

Two months ago I purchased a very expensive Lancôme foundation from the Woolworths store in blue route mall. The cosmetic consultant at the time had specialized in the brand and reassured me that the colour suits my skin tone. The Monday on my way to work I noticed my face was orange and not the colour she reassured me it was. I then contacted her )Zara, asking her if she could assist. She then told me to return to the store and she would give me a colour to mix in with the existing product I purchased to even out the tone. This has been my THIRD time returning to the store, no one that is able to assist and now Zara no longer working there. I’m so flippen ****ed off because I can obviously not exchange or return this product. But what I don’t understand is that they have 6 bladdy S****ED consultants behind the counters that can’t help me????? It inconveniences me every time I have to come here with no one to help and now I have to purchase another foundation that is going to cost me an arm and a leg. This is utter bull****. I want my money back or a colour that WILL match my skin tone.