Twix Solution — Receiving text and mail often for paying the amount

They have called me and told to say only yes for confirmation cal.so I didnt read the agreement carefully and then after recognizing I had told them that am going to withdraw from the agreement..but they compelled me to pay 5100 and they sent some messages and email and after compulsion I paid 5100 but after they told me to pay extra 3000 as gst tax..then only I got to know about this and called them and asked ..but they told that that number was not from our company side .and u paid wrongly ..so u have to pay again to our company..then now also I have been receiving messages constantly like arrest warrant and complaint have raised against me..so pls see to this fake company and relieve me from this issue ..pls see to this issue since lot of students are affected by this ..