Byju's — Not getting the service as promised at the time of sell

I got Byjus Learning service for my daughter for 9 & 10 Class. Its about 4 months i am using the service but still i did'nt get the basic services what they romised at the time of sell. FIrst SD card was received in 3 months after continous follow. No live class happeing but the time of sell they promised 3 days live class in a week. No mentor assigned but at the time of sell they told dedicated mentor will be assigned to my daughter.