My Viva is a simple solution for subscribers to check account balance, recharge it, switch to tariff plans, control available services, and much more.The app lets:∙ Control account balance;∙ Choose tariff plans and service, best fitting subscriber needs;∙ Activate/deactivate services;∙ Control Internet, airtime, and SMS packages;∙ Check the nearest service centers;∙ Contact the Hot Line;∙ Exchange bonus points to gifts.