Personal Loan - Wificash/Chadha Finance ( Mobile app )

I hd taken a Personal Loan of Rs 6000/- frm Mobile App - Wificash/Chadha Finance ( delhi based ) I hv been using this apps for instant loan since some time & have never ever defaulted or delayeed my payments before.My Payment duedate was 11feb.However since this March & also because of lockdown my payments/salaries hv been blocked resulting in severe financial crisis with a situation literally hand to mouth.I hv tried contacting the Customer Care multiple times on emails/calls explaining my situation bt there has never been any response since 2 months.I hd also sent them my Bank statement just to make them understand hw bad my financial situation is currently bt still there hs never been any response ( just warning messages frm their recovery team for payment ) Nw i have received a warning letter on my email from Wificash ( on 20th April ) stating that if i dnt make the payment before 23rd April with late fees added ( total 13000/-) they will go ahead legal way. My current financial is so bad that frankly i cant even afford a lawyer for legal counsel . Even after multiple emails looking for temporary moratorium / time to pay my loans there has been zero response from them. Please Advice with what can i do now :-(