Cell C don't treat they customers well

I am having the worst experience with Cell c and I swear I would never ever take any contract or buy anything from them again. I have a cellphone contract with cell c and in May 2024 I was due for an upgrade and I upgraded got a new phone. December 2024 the phone overheated and just went off. I took it to the store on the 11th of Dec and I was told they don't need Sim trays,chargers ,pouches or a box , I should go back with them. Since then I never heard anything from them until I decided to call cell c repairs on the 14th of January 2025 only to find out they sent an email to the store on the 18th of December saying they want the Sim tray which they said they don't need which is not delaying my phone to be fixed. Cell c doesn't have a store in Thohoyandou so travelled to polokwane just to deliver a Sim tray on the 15th of January. On the 24th of January which is yesterday i called the centre now they are telling me they need a cable for further assessment I'm supposed to travel 180kms to deliver a cable again which I Pay 250 randsv just to get to polokwane for the second time and which is delaying my cellphone to be repaired again. I sense there is something bad that cell c wants to pull because hey started by not calling me to inform me about the sim tray which i found out about it a month later only because i decided to call if i did not call they were all going to be quiet. it's now past the 21 days we agreed on to repair.without a cell phone.its now a month and weeks without a cellphone which they are billing me every months. I sense they want to come up with excuses because they are giving me a run around