SkillLync - Skilllynk loan emi cancellation

This is regarding skilllynk EMI cancellation, I visited few years back skilllync website by seeing in social media. Unfortunately i didn't get connected to them because of my interest i ignored those calls, emails from them. After *years they reached me again keep calling everyday and they are always saying that you will get higher CTC, mnc companies but on that time also I told them to i don't intersted but they are not stoped Calling. Later on one day I paid pre-booking amount by hearing their motivational speeches and i joined orientation class. In the gap of orientation they asked my personal details for registration purpose i shared my documents with them.By taking those documents they are provided loan for the course. after few days my father got sick so I changed my thought and i tried to cancel my emi loans. I am trying connect to skilllync but they are telling there is no cancellation for this course you need to pay and continue the course. That loan provided company name is Eduvanz they are also started calling and messaging to clear the emi. We are financially week but i taken risk and joined with the hope of higher salary but current situations are challenging for me. Kindly help me to get this cancellation to be done.