Kolors — Refund of my non attend service

I had undergone treatment at Kolor anna nagar branch, in my package i havent not taken certain treatment i had produced proper letter for not taking treatment to branch due to personal issue which was received by branch.from past two years i am fighting for my money but no response still now from that branch.Even on site visit, mail and letter no answer for all correspondence and communication for past two year.i am struggling hard to get my money back even at i my toughest situation. even customer had clearly informed situation which which accept by the branch but still i am running behind back of my money. i am really fed up to follow branch for past two year and i dont know where & when i will get answer for my money.