Instant ink 試用期已過, 打算取消
登入hp smart後按 "HP Instant Ink", "更新計劃", "取消你的計劃" 後頁面顯示:
Server Error
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
透過其他連結到取消instant ink頁面均是出現相同情況
已經嘗試兩天, 請問如何取消