Consumer Redressal

I brought a Laptop From Reliance digital, Avani mall, Howrah Make : ACER- Model AOD-270 S/N 8012213247F27614 on 08/09/2012 and it is under warranty. I am trying to register a complaint through their ACER Publicised Customer care numbers taken from their website www.acer.com. 1-800-11-6677 and other numbers since last one week. Their automated voice response system always says- thank you for calling and that there personnels are busy attending other calls. These are machine response and never get connected to any human. I have also sent SMS to their nominated number 9901676677 on 14/08/2013 and before but they have not responded. I have tried to call their kolkata office through their website no.i.e. 033-24794350 & 25425131 but they are non functional. When a service center was contacted they said the complaint has to be registered thro telephone only when they will attend. The on site warranty as promised by the company during purchase is valid upto 08/08/13. Please help.