Exito fashion house

I bought an item on the 2nd June 2021, I received the item on the 10th June 2021. The item did not fit so I returned the item same day to the shop and logged a refund. I have been waiting for a refund for 4 weeks now, they ignore my messages I have all the screen shots, I wrote on their wall after the posted, I got an immediate response that they would follow up. Its now almost 4 weeks