目前有的G幣什麼時候會歸0??

<span style="color: rgb(255, 138, 130); font-family: "Noto Sans", "Microsoft JhengHei", Roboto; font-size: 18px; letter-spacing: 0.9px; -align: center; background-color: rgb(254, 207, 204);">G幣一年會有二次結算日：每年的6/30、12/31。</span><br style="font-family: "Noto Sans", "Microsoft JhengHei", Roboto; margin: 0px; padding: 0px; box-sizing: ber-box; color: rgb(255, 138, 130); font-size: 18px; letter-spacing: 0.9px; -align: center; background-color: rgb(254, 207, 204);" /> <span style="color: rgb(255, 138, 130); font-family: "Noto Sans", "Microsoft JhengHei", Roboto; font-size: 18px; letter-spacing: 0.9px; -align: center; background-color: rgb(254, 207, 204);">結算日到期未使用將會自動歸0。</span><br />   <div class="bigbox-1-title f14" style="font-family: "Noto Sans", "Microsoft JhengHei", Roboto; margin: 0px; padding: 0px; box-sizing: ber-box; font-size: 14px; float: left; width: 57px; background-color: rgb(255, 112, 101); letter-spacing: 1.4px; color: rgb(254, 254, 254); line-height: 28px; -align: center;">範例</div> <div class="bigbox-1-txt f12" style="font-family: "Noto Sans", "Microsoft JhengHei", Roboto; margin: 0px 0px 0px 10px; padding: 0px; box-sizing: ber-box; font-size: 12px; float: left; width: 472px; font-stretch: normal; line-height: 15px; letter-spacing: 1.2px; color: rgb(137, 137, 137); background-color: rgb(254, 207, 204);">A小姐在2017.1.1~6.30所累積的G幣，最晚要在2017.12.31前使用完畢。而A小姐在2017.7.1~12.31所累積的G幣，最晚要在2018.6.30前使用完畢。</div> <br /> <br />