Vietnam Mobile Payment Market Size, Share, Competitive Landscape and Trend Analysis Report, by Type (Proximity Payment and Remote Payment), Mode of Transaction (Short Message Service, Wireless Application Protocol, and Near-Field Communication), End User (Personal and Business), Application (Hospitality & Tourism, Media & Entertainment, Retail, Healthcare, Energy & Utilities, IT & Telecommunication, and Others), and Type of Purchase (Airtime Transfer & Top-Ups, Money Transfers & Payments, Merchandise & Coupons, Travel & Ticketing, and Others): Opportunity Analysis and Industry Forecast, 2020-2027