Pathetic and Unprofessional Service!!

On the 25/08/2023 at around 18:00(pm) i bought a Samsung A14 at Jet store(Sam Ntuli, STORE CODE: 457301), and made a payment of R956.95, i left the store and on my way home i made settings a PIN and Fingerprint, then a couple of minutes later a notification popped up that i need to restart my phone for Google settings to kick in. At first I ignored that massege. Then I used the pin I've created to unlock the phone, then made a phone call, then after that I locked the phone again. Then the same Google notification message popped up again requiring me to restart the phone, then I eventually did so, then restarted and it said it would. Then when it was back on I tried to unlock it, and it said PIN INCORRECT!and it didn't wanna use the finger print either cause it restarted so it requires the PIN first, so since then it kept saying PIN INCORRECT!.Then i called one of the DigitalCare Customer care help line, and they've being sending me up and down, back and forth to all kinds of Jet stores, but nothing helped!then i went to Jet(Calton Centre CBD) and asked to cancel the contract since they are failing to help me, then one of the Lease consultant sent a message to their WhatsApp group inquiring about my problem, and then one other consultant responded that he also once had a customer with the same complain i had, and they were able to help them. phone calls were made to The IT department as well but nothing worked! they still failed to help me with the very same problem someone else had but was helped! So then I asked for cancellation forms, and they told me they didn't have them at their stores. I will have to call customer care at DigitalCare and they will email them to me. tThen on my way I received a call from a lady called Evelyn from Midrand(Johannesburg) begging me not to cancel the contract, she promised she would send it to the specific people and surely it will get fixed, she assured me! that was on the 28/08/2023, then i asked her still that i wanna cancel this whole thing before the 7 days free cancellation trail ends, and she still begged me not to cancel it, she said she will get it picked up and fixed. and I did as she asked, and the next day they came and picked it up. Days went by They didn't bother to call me about the updates or anything, i had to be the one doing follow ups and staff, and still no positive results!!then on the 05/09/2023 i call them AGAIN as usual, and they eventually picked up my call and told me that apparently the phone is MTN SIM locked that is why it is not picking up the PIN i have registered it with!! and which doesn't make any sense because the moment I bought the phone, I was asked at the store which network am I using and I told them that i am using CELLC, and they didn't say anything about the phone being SIM locked!! i myself AGAIN called the Agent i bought the phone from and asked her why she never told me that the phone was SIM locked, and she told me that the phone it is not SIM locked, she even confirmed it with one of the store Guys,and they confirmed that Samsung A14 it is not SIM locked!!so now i honestly really don't know what to do, they are now telling me that they have to book it in for deep something repair on the kick box or something like that and i will have to pay for it, and it will probably cost me R2000 - R3000, then i told that i am not going to pay that money, they should have told me the moment i was busy buying the phone that is it MTN SIM locked, so i still ask for cancellation forms still, and now they are telling me that i will still need to pay for that too because 7 days has now passed!!and my question is WHY??!!WHY DO I HAVE TO PAY FOR CANCELLATION WHILE I WANTED TO DO THE CANCELLATION WHILE I HAD THE PHONE FOR LESS THAN 4 DAYS!!WHY DO I HAVE TO BE THE ONE PAYING FOR SOMETHING THAT IT IS NOT EVEN MY FAULT THAT IT DOESN'T WORK ANYMORE??!!WHY DO I HAVE TO BE THE ONE MAKING THOSE PAYMENTS THAT I DIDN'T CREATE??WHY??!!....ALL I NEED IS TO GET A REPLACEMENT FOR THAT PHONE!!THAT'S ALL