STC Pay is a financial company owned by STC. It is a secure digital wallet in the form of a smartphone app that empowers you as an individual or a business to take full control of your finances at your fingertips – anytime, anywhere.
stc pay Customer service
Or Visit : stcpay.com.sa/en/page/support
You can contact stc pay by telephoning stc pay customer service team at 
Ad Diriyah Riyadh 13714
stc pay is a digital secure wallet that is specially designed to offer you optimal levels of speed and convenience. This service allows you to make online payments, transfer funds safely and on the go, in addition to online purchases and at participating retailers. All of these payment options are easily done through your phone and other smart devices
Source : stcpay.com.sa/en/page/faq#sadad