Poor customer service at Jet Somerset Mall

I would like to complain about the poor service I received at Jet Somerset Mall. I purchased a cellphone on the 16 December 2024 at 11h44 am. Upon making the purchase, the cellphone was opened by the store team to "activate" the phone. I then changed my mind and wanted to do a refund later the same day at about 16h00. I was refused because I already made the purchase, this was the response from the cashiers and the manager. This morning, 17 December 2024 I went back to the store again to do the refund which I was refused the previous day, the manager still refused claiming the phone was already activated. I literally purchased this phone,had it for 4hrs in my possession without using it as I was also at work at the time but still I am being refused a refund which does not make sense at all. I then went on to contact TFG customer service where I spoke to one of the agents who assured me I will receive an sms with my reference number, till now, nothing yet. No response, no reference number. I have provided the agent with my husband's contact details. I am dissatisfied with the poor service I received at Jet Somerset Mall and the nonchalant attitude from the manager. My frustration is that the phone was opened in the store by the store team upon the purchase as that is the only way for them to activate the cellphone, yet I am being told "the phone is already activated " I want my refund and I strongly suggest you train the whole team,from management to casuals on how to provide proper customer service. Jet somerset mall sucks and i will definitely share my experience with family and friends.