JustDial.com — Unwanted call even after closing down the company

I was working for an organisation and i was handling the public relation for them and on that basis i was approched by the justdial executive member for the membership, later on when the owner of the company decided to close down the company, we withdrew our membership for all these company and closed the company. the company was closed in 2017. till date i.e[protected] i am getting calls from justdial and after requesting them not to call, still they call and ask me 100's of questions. they call specailly after 6pm which is not an official time. i have spoken to 1000's of so called managers and everytime they assure me that now i will not get any call but still i am getting it and its like of torturing. its like a mental harrasment that i have to bear all these calls because i cant avoid unknown numbers because of my current job profile and justdial people just dont stop calling me.

my contact details are [protected]