Wrong item

We bought a SamsungJ1 phone from Edgars Active in Lusikisiki in July this year, We discovered that the phone had a technical problem, we returned it back twice. On both instances the phone was not sorted out. It has been sent again for the third time. We therefore urgently demand our money back. We don't need their phone anymore. We have been disadvantaged for 3 consecutive months. Their level of care is below sub standard and we bought the phone for a reason. They refused to give us another phone. We lost business for this period. We wish this to be reslved within 48 hours.