A mobile wireless communications system comprising: a mobile wireless communications device comprising a portable housing, a wireless transceiver carried by said portable housing, a processor carried by said portable housing and coupled to said wireless transceiver, and a near-field communication, NFC, device coupled to said processor and including a first NFC antenna; an NFC carrying case configured to carry and communicate directly with said mobile wireless communications device and comprising a base panel including a second NFC antenna and configured to carry said mobile wireless communications device, a removable cover panel coupled to said base panel and configured to removably cover at least one side of said mobile wireless communications device, a plurality of pairs of discontinuous NFC circuit segments (51'a-51'n) carried by said removable cover panel and coupled to said second NFC antenna, and a plurality of removable switch assemblies (55'a-55'n) each carried by said removable cover panel, each removable switch assembly (55'a-55'n) including an NFC controller (56'a-56'n) associated to a different NFC code and configured to selectively couple a respective pair of discontinuous NFC circuit segments (51'a-51'n) to said second NFC antenna to establish direct NFC communication with said NFC device. a mobile wireless communications device comprising a portable housing, a wireless transceiver carried by said portable housing, a processor carried by said portable housing and coupled to said wireless transceiver, and a near-field communication, NFC, device coupled to said processor and including a first NFC antenna; a portable housing, a wireless transceiver carried by said portable housing, a processor carried by said portable housing and coupled to said wireless transceiver, and a near-field communication, NFC, device coupled to said processor and including a first NFC antenna; an NFC carrying case configured to carry and communicate directly with said mobile wireless communications device and comprising a base panel including a second NFC antenna and configured to carry said mobile wireless communications device, a removable cover panel coupled to said base panel and configured to removably cover at least one side of said mobile wireless communications device, a plurality of pairs of discontinuous NFC circuit segments (51'a-51'n) carried by said removable cover panel and coupled to said second NFC antenna, and a plurality of removable switch assemblies (55'a-55'n) each carried by said removable cover panel, each removable switch assembly (55'a-55'n) including an NFC controller (56'a-56'n) associated to a different NFC code and configured to selectively couple a respective pair of discontinuous NFC circuit segments (51'a-51'n) to said second NFC antenna to establish direct NFC communication with said NFC device. a base panel including a second NFC antenna and configured to carry said mobile wireless communications device, a removable cover panel coupled to said base panel and configured to removably cover at least one side of said mobile wireless communications device, a plurality of pairs of discontinuous NFC circuit segments (51'a-51'n) carried by said removable cover panel and coupled to said second NFC antenna, and a plurality of removable switch assemblies (55'a-55'n) each carried by said removable cover panel, each removable switch assembly (55'a-55'n) including an NFC controller (56'a-56'n) associated to a different NFC code and configured to selectively couple a respective pair of discontinuous NFC circuit segments (51'a-51'n) to said second NFC antenna to establish direct NFC communication with said NFC device.