StashFin — False loan

In 2020 i have make an account on stashfin bt no amount get credited to my account ..it was 1500 rupees loan what they are claiming ..later someone contacted me and i sent them my all bank statement showing no amount get credited by them still they asking for money ..i lost my phone and now they send me mail and putting charges of IPC and asking for 14000 approx ...which is not possible for me ..i tried to contact them bt they just send automated message ...i m ready to pay 1500 which they are claiming bt if not this case, thn i m ready with all legal procedure of defamation and mental harrasment