You can use your CASHU wallet either to purchase from CASHU direct merchants or through generating a prepaid virtual Mastercard which can be used on any eCommerce website that accepts payments through a prepaid virtual Mastercard.
Please find some of CASHU merchants in CASHU Mall:
http://www.cashu.sa/mall/en/home
P.S: Generating Mastercard is only available in the below countries:
Kuwait, Bahrain, UAE, Oman, Saudi Arabia, Yemen, Iraq, Jordan, Lebanon, Palestine, Turkey, Egypt, Libya, Tunisia, Algeria, Morocco, China and Hong Kong.