Tablet not fixed

A Telkom Mobile tablet was bought in 2014 from Edgars CBD and started giving problems like only working while on a charger. On 15 Nov'15 I took the tablet to Edgars Centurion where it was Booked in by Emily Maluleka and indicated that 3M is their service provider. On 19 Dec'15 I went to Centurion Edgars to check if the tablet is back and Emily told me its not, without login on the system or calling anyone. On 04 Jan 16 I went back and she went into the storeroom and told me that the tablet is not back when I asked when to expect it her answer was \wait until you receive a call or SMS' from 3M for collection. On 16 Jan'16 I went back the same story from her but it was the manner she rendered the service to me . On 19 Jan'16 I went back and was assisted by Matshediso who also checked on the system and store room to find nothing but called me the following day to confirm that the tablet was received on 02 December 2015. The tablet is not in a working conditions, it does not even charge or switch on anymore. This has caused a serious inconvenience of banking communicating and emails. I need answers ASAP. I don't want this Tablet anymore. Am frustrated...."