Askmebazaar — 2600 mAh POWER BANK SUMSUNG not proper work

My order no AB2102688 COMPLENT NO QRC336173 for 2600 mAh POWER BANK SUMSUNG but till date no any person contract for return defective product old mail sir, i have purchased samsung power bank 2600 mAh of 299 Rs on 03/04/2015 via ask me bazaaar.com with order no AB2102688 I have recived this packet on 10th of April 2015 but after charging it, it is not working properly . After charging fully your 2600mAh power bank can't charge my 1500mAh samsung galaxy s duos 2 & only charge 35% of the mobile battery NAME - ASIM KUMAR DEY ADDRESS- CE EITC SHED no. 8 CSPDCL DANGANIYA, RAIPUR, C.G . 492001 MOBILE no - [protected] MAIL ID - asimdey.[protected]@gmail.com Date 25.04.2015 mail http://www.askmebazaar.com/contact.php