Tᴏ ᴄᴏɴᴛᴀᴄᴛ ᴡɪᴛʜ R ᴏ ʙ ɪ ɴ ʜ ᴏ ᴏ ᴅ ᴄᴜꜱᴛᴏᴍᴇʀ ᴄᴀʀᴇ ɴᴜᴍʙᴇʀ, ᴄᴀʟʟ +1 - ８４４ー(６０７)ー 8 1 0 0 ᴏʀ+1 - ８４４ー(６０７)ー 8 1 0 0 . https://support.google.com/edu/classroom/thread/337839951?hl=en&sjid=17004295800818169595-NC