I arrived in US with NOS portuguese phone. I put it in airplane mode not to pay for roaming and in the last 3 weeks NOS added 100 euros charges to my invoice. What should I do to avoid being charged this high costs? I need that phone on wifi to communicate with whatsAPP and access my Portuguese home security and cameras. I called NOS support on +351 931 699 000 but the service is only in Portuguese. It would be nice to have some form of chat in EN.
Melhor resposta por Mário P.
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