Byju's — No proper responses

Mr. Saravanan Student councellor of Byju's attended my son M. Rishhikesh on 15thJune 2022 and asked Rs.10, 000 for registration. We gave a cheque and he told we will receive the Byju's Kit in 2 to 3 days but till now (30.06.2022) we didn't receive, and also he is responding to our calls. We tried in branch office and they are replying that they will check and update us, but still we didn't receive any update on it. So kindly pls take any action and solve our issue as soon as possible or else a strict action will be taken from our side .