Overcharging order from Ali Express

I ordered a item from Ali Express, advertised as "Free Shipment". After shipment I get this SMS from this company to pay 78% of the item cost! I cannot cancel the order anymore because it is shipped. So I have to wait for the item to arrive before cancelling, then I would have to pay the shipment VAT etc. charges anyway. So I have no choice but to pay Speedaf. Daylight *******! I will never use Ali again. Lesson learned.