Buy items again

I am still happy to buy the products I want to buy, but I ordered another set of sunglasses before this purchase. I waited for more than a week but the products were not shipped smoothly. I waited for a long time to receive the product refund notice. The reason was that the product was out of stock. I felt that the refund waiting time was too long. There were other products I liked in the middle, but I did not dare to place another order because I was not sure, because this episode made this purchase a fly in the ointment