The auto top-up option will be only available at the moment for domestic top-ups in the following countries and operators: 

 

United Arab Emirates:

DU and Etisalat 

United Kingdom:

EE Everything, Virgin and Vodafone

Liberia:

Lonestar Cell and Orange (Cellcom)

Trinidad and Tobago:

bMobile and Digicel 

Spain:

DigiMobil, Orange, Vodafone, Simyo, Lyca, Lebara, Llamaya, Yoigo, Movistar, Hits, Masmovil, Tuenti, Best, Euskaltel, HablaFacil, Happy and GT

Italy:

Lyca, Poste, Tim, Vodafone and WindTre