Micromax Informatics — I am complaints about service center

Address:

600045

Respected sir,
I just droped my phone (A102) so that its display broken, for that i went to micromax service center (Mobitech, no 29. Gst road, kadaperi, tambaram-chennai-600045. Ph-[protected], [protected]) on 01/04/18.
They said me display to be changed, so the price is 2300/= i gave rs 1000/=for advance (Bill no-977) they asked me to come next day.
On next day 02/04/18, they told me the touch also not working it has to change. They get rs 500 for the touch and asked me to come on two days later.
On 04/04/18 i went there they said one of the sim tray not work give 200rs for that totaly i paid rs 3000/= (2300+500+200) (Bill nos-977, 1517, 1525) eventhougth the touch is not working. When the phone is switched on the screen randomlly running, i asked them what is the problem, again they said, the touch is malfuntioning so we will change another one you come and collect after 3 days.
Three day later (09/04/18) i went there, they gave me the phone the same problem was there. I asked them what happen for this phone. Again they said, we will change another one touch which one from delhi, we put order to delhi, they asked me to come on 16/04/18 monday. Further they said we have to check the circuit board.
Please sir, i am a retired person, i am not able to spend too much money for that phone. Please i reqest you, i am not interested to repair the phone, i want my money what i paid and they can remove all the spares which they replaced.
Please, kindly take neccesary action for me.
Thanking you.
(Note:my mobile no=[protected])