Consumer Redressal

I purchase a powerbank of 10400mAh form askmebazar.com in Rs 699 but this is not working as per this ability and not charging my mobile as per its power.I charge it full and I charge my mobile form power bank but it discharge before charge my mobile,in this connection i file a complaint at company's no. 0444-444-4444 they give me No. QRC 133879 and assurd me that they will contect me within next 7 day and chang the product but after 7 to till date never any call i have receive form company. company had cheet me & fraud with me please help me. MY Product order No. is AB1173620 & complaint No. is QRC 133879 dt. 24/2/2015