Misleading advertising

I was a victim of false advertising and feel was treated unfairly by Shein. Massage brushes were advertised as a pair 2x1 so I ordered a pair. and my order showed 2x1 but when parcel came there was just one brush. I tried reasoning with them on several emails to no avail. my order was GAZTKWJAU1D2H10. This is totally unacceptable.