Byju's — Bad mentor support

I have been associated with offline class of Byjus since 2018 for my son. In 2022; enrolled in live online classes program for 10 th class; Ikjot Singh. Have been trying to resolve class timings by speaking with innumerable mentors... As every time new one is nominated; explain the same thing and in response get the reply: your query is raised to next level. But the resolution is not provided till date. Fed up with the horrible experience. Don't know how to proceed further. My son's 10th class crucial time is getting spoiled.. need immediate intervention..