Sold a faulty mobile phone!

Sold a faulty Samsung J7 that does not have LTE/4G.

Took the device back to the store after months of calls for assistance form my network provider (CELLC) only to establish the device has an LTE band lock on it.

Purchased the mobile with intentions of having an LTE/4G device, only to be told 6 months return had elapsed, all this while I was trying to sort out the issue with the networks (even sim swapped twice).

I am not happy with the way Leyden and Mpho dealt with this issue, having the device in for over 3 weeks, only to be told they cannot help me.

The device has 1 year warranty and does not work at all as an LTE device.

I would like to be refunded or granted credit.