Poor Service

I took my son cellphone in for repairs of which when it was sent away for tge second time . A few days later I was informed from Mobicell repair center that a payment must be done for a repair or a payment to return it to the store if I dont wish that it must be repaired . As a client I informed them to return the gadget but refused to pay anything , firstly the cellphone is still under warranty ,secondly no terms and conditions were explained to instore on their gadget repair of which there were none on it . I demanded for my sons cellphone to be returned since I was not informed of anything of which I will be liable . It has been almost 2 weeks since the store Ackermans Mimiosa in Bloemfontein promised that they would return the item without me being liable for anything. Mr V de Koker