Dell India — Microsoft excel not working

Address:

Rudralayam, Mamom, Attingal, Trivandrum 695104

My Lap Top ( INSPIRON 3593) with a service tag of 7YG2B53 with a service warranty of 3 year. At first time its key board was damaged and second time it will run very slowly. The first complaint will rectified by the service technician from Green tech service center, Trivandrum. But the second complaint will still continued. the last week I found my Microsoft office will not be working I call the technician in the Green tech, Trivandrum. he will come install another OS in to my Laptop. Today I had seen The excel is not opening. No one from Green Tech Service center, Trivandrum will not attend my call. I am fed up from this laptop. please rectify my laptops complaint. other wise please taken back this lap top and give me my money back