Don't want to give me my money back.

I made a payment this morning to purchase hair from the Instagram account named @dragoncityshopd43, and I I communicated that I need the hair delivered by Thursday. After I make payment I'm asked which courier service would I like and I asked for Courier guy for overnight then I'm told they will only ship Friday, I explain my traveling on Friday and ask to be refunded as they only state after payment that they open on Friday. They never communicated that in the beginning before payment, now they don't want to refund me. I call they don't answer, I send messages they keep telling me they open Friday instead of refunding me. Had they communicated before payment that they only open Friday I was never going to make payment and I would have looked elsewhere. The name of the hair is Angelababy Weaves on Facebook