Samsung — defective samsung galaxys3 mobile handset

Address:

Mumbai City, Maharashtra

peraid adv.deepak more purchased samsung mobile on 18/4/2014.since past 6 month handset giving me trouble.mobile switches of and then never starts again or starts after long perioid of time.and many times when i connect charger it shows charging going on but battery charging percentage remains same.i repaired mobile once in u r service center in mumbai.they told me motherboard needed to replace.after that now i am facing same problem.following qre details of handset model samsung93001, vat tin no [protected]v.my contact no [protected].please help me. thanking you