Lenovo — range problem

Address:

Kasaragod, Kerala

Dear sir
I purchased product number pa5e0174in - lenovo-k33a42-gold-manufacturing dt 3/2017 through online. Due to the following problems, i couldn't use the same since i received
1. First it was slot problem, which rectified from their authorised service centre at payyanur in kerala.
2. Though slots replaced, there is no range in some low signal areas like my home.
3. The mobile companies like nokia, samsung, micromax, xioami, coolpad have ranges in this place.
4. Then it entrusted their service centre on 30/6/17 at kannur in kerala. As per their opinion it's mother board has been replaced and collected on 23/7/17. Still the problem is existing.

In this circumstances it is requested to replace a new one.
Thanking you

Yf
Dr. K. Kunhambu