Swipe Elite — phone always, hangs & charging issue

Address:

Ahmedabad, Gujarat, 382424

I hv purchased swipe elite sense phone frm flipkart (Bill date-07.03.2017).
My mobile has a hanging issue... It hangs for many days & then i hv to take it to service center (It neither shut down nor works).

The charging slot is also not working till date i hv purchased 3 chargers of this mobile brand. But still very slow charging..& i hv to adjust the position of the mobile a lot to make it charge.

Last month, i took my mobile to swipe service center.. But they only updated the software & did nthg for charging.
Also, software issue is still there.

Kindly help