Skill lync - Confiscate Rsby giving False Statement

I received marketing calls from SKILL-LYNC Chennai Office by Saropaulin Kirubakaran for a PG course (Post Graduate Program in Hybrid Electrical vehicle design & analysis) She has told to many things about this course.
*. ***% JOB Guarantee.
*. * Months Paid Internship.
*. The Faculty is ** Years Experienced.
*. Strong hands-on exposure
*. **/* support system
*. Project Portfolio

And to many things…
She also said that you are eligible for Scholarship and she reduced fee by Approx. **%.
But She have not told me about any Loan.
They have said that to pay Rs. ****/- initial amount to take admission.
I have paid registration fees Rs. ****/- through credit card on dated **th Jan, **** **:**:** PM IST.
But after payment they demanding for PAN Card, Aadhar card and Passport Size Photo.
I thought that these documents may be required to take Admission.
But next day on dated ** Jan-**** I have received one message on my mobile from Eduvanz the message is “Dear Customer, we have received your details for Loan App------- Please Contact Eduvanz”
I talk with SKILL-LYNC team about this Loan. They have told me that to Access the course you need to go through Loan process to pay your remaining fee in ** Months of EMI.
But I said to SKILL-LYNC team that I am not interested for any type of Loan. With loan I am not able to take admission in your Institute.
So please refund my Rs. ****/-.
But SKILL-LYNC team told me that this amount is nonrefundable.
They have also taken the Meeting on ZOOM app. But I said to the SKILL-LYNC team that I am not interested in any type of Loan then Mr. Arunbalaji told me that you will get call from SKILL-LYNC finance team within ** days. But after one week I talked with Saropaulin they are saying that you will get the amount after ** days when you paid. I have said that please share any written mail regarding this. Then she says yes but when I do not get any mail then I have called many times by phone to Saropaulin then she is not receiving my call. Then I have sent messages on WhatsApp then in the message she replies that it is nonrefundable.
I have called to many times to SKILL-LYNC team for Refund but they are not receiving my phone call. I have also written mail to that team member but they are not giving any reply to my mail. I have also sent WhatsApp messages but they are not reply.
I have also talked with Grievance team but they are also saying that we can not help on this issue if you have any Proof then you tell, but they have said verbally and when I said to share any written communication then they are ignoring me.

On what basis you are saying that this amount is nonrefundable. In beginning you have not told me about any Loan and currently I am not agreed with your terms and condition then why you Confiscate Rs. ****/-.
Please help regarding this Rs. ****/- is to many amounts for me.
Please refund my amount in my account as soon as possible.