Cars24 Services — Warranty period service of covered parts

I bought an used car and took for service in an authorized Honda service store. There I got to learn 4 Ignitor of the car is out of life which had caused odd acceleration and jerks of the car.I took quotation of estimated expense to replace 4 Ignitor and the amount was INR 27370.I contacted Cars24 and inform every detail with them.In return they did validation of quotation and claim.After validation they assured to pick the car for fix.They asked for confirmation on pickup date and time.I have shared the same with them.Without any prior notification I got a call from them on 13th December for pickup and I had to deny as I was not prepared. Now they are not coming back to me with any channel of contact.