I tried IELTS Writing: General & Academic and it doesn't work: After doung the first sctivity ( a eritten complain) i couldn't send it wich make me unablevto get a feedback of my written. after dc

I wrote the first written activity requested ( a complaint about a rental accomodation for a family) and tried to send It many times without success
So I ask for making It possible to send these sctivities and to receive the necessary evaluations of them