The prices in 2020聽is $15/mo聽line for the billing month or any part of a billing month.聽It drops to $10聽if you add every line in the account through customer service. The Gogo is 1-hr is now included in T-Mobile One amd One Plus makes it unlimited.聽聽

One Plus Promo is free snd available from customer service to T-Mobile customers in 2020 who have subscribed since 2014. (Long-term customers). The double speed data聽is available in 140+聽countries, not 210+ like One Plus.聽However, the online link on both never really confirms your chosen country or the country list, so聽you are supposed to guess that it is the same as the Stateside International free landline countries of the same number for One Plus.聽They are working on fixing that. However, in the app where you see your added services for One Plus Promo,聽it says 140+ countries, not 210+ countries, and again, the country list is not linked.