设备或网络问题影响交作业

Dear [Teacher's name],

[Child's name] has completed [part of task], but [device/internet/platform issue] is preventing submission through [platform]. The task is due on [date/time], and we have tried [step]. Could you advise an acceptable alternative submission method or the appropriate support contact? We can provide the completed work in [available format]. Please let us know whether any deadline arrangement is possible; we understand that this needs your confirmation.

Kind regards,
[Parent's name]