Faber — Poor response for servicing of chimney.

I have a AMC contract with FABER (application form no.63300) for servicing my chimney from 06/03/2015 to 06/03/2016.I requested for servicing on 02/01/2016 but till date no one has come for servicing till date. Ihave been contacting Faber everyday (Phone no.[protected]) and they keep telling that they will send the technician. Now they have stopped picking up my mobile no.([protected]).I havesent three complaints to their mail [protected]@faberspa.com but of no use. I am still to get my chimney serviced.Kindly look into this complaint and do needful. Regards, Raghu, 304 vaikuntam apt. Kundallahalli, Marthahalli post, Bangalore.([protected])