Home Slickdeals T-Mobile LG Buy One Get One Free Deal, no new line needed... Slickdeals T-Mobile LG Buy One Get One Free Deal, no new line needed or T-Mobile One plan – Starting Feb 16th. By ARCOM - 16 February 2018 174 0 SHARE Facebook Twitter Go to the deal page: T-Mobile LG Buy One Get One Free Deal, no new line needed or T-Mobile One plan – Starting Feb 16th.