Hyundai Motor India — no solution of problem since 25 days

Address:

Ahmedabad, Gujarat

I had given check for hyundai portal insurance. They given me policy. After 1 week my policy has been canceled showing reason that check is not in allocated range. I have soft copy of my check. There is absolutely no problem with my check as told by bank manager. Then how can it be bounced?
And according to bank that check must be returned back to me.. But concept hyundai ahmedabad people not getting this attention despite of my frequent calls to him... I am totally dissatisfied with their service and they got giving solution at all to return my check.