Sukam — no service response

Sir i have purchased a new sukam brainy eco 1100 invertor on[protected] through flipkart sold by apollo trading company with 02 year warranty.
On[protected] some technical problems happened with my invertor.
I registered the complain sukam customer care [protected] on[protected] and my complaint no is 48546c16010319.
Sir customer care told me that your problem will solve 3 or 4 days.
Engineer visited my invertor[protected] and said that your problem will solve 2 or 3 days when new pcb comes from company.
After 1 week when i call engineer they no answered then i call customer care the call is not going till today.

Sir i request to do the needful solve my invertor problem at the earliest.

Thanks & regards
Hanuman singh