Foneyam Estcourt Pep

I took a fone on the 15th August 2025 in Estcourt Pep Harding Street. Honor X5b Plus. Everything was done and I was informed that my monthly installment will be R250, to my surprise 5 days prior to payment due date I get a message that I need to pay R311.21, well I ignored the R311.21 message as I was told I will pay R250.00, & I thought there was a misprint or something, went to same pep on Sunday the 21st September to pay the R250.00 and I wanted to enquire about the message, but unfortunately the consultants do not work on Sundays, this morning the phone was blocked due to the unpaid difference of R61.21, again I had to drive to pep, I don't stay in town to enquire. The lady consultant made a few calls, and called the supervisor who dismally failed to help. Firstly he did not introduce himself and advise that he is here to try & sort it out. I waited patiently, he then called I think it's customer care which did not help either. The lady at customer care advised that I have only 2 options to cancel & return the devise or cancel & keep the devise, but both options I will have to pay. I then I advised her that I am not taking both her options, I then gave the phone to the supervisor who turned around & said to me, he is not the one who helped on the day I took the phone & he's not going to speak to the lady at customer care. So my question for Foneyam do we have to pay for other people's mistakes. I did give them an option as well, that they give me the phone worth R250 or unblock the 1 I am using. I told them I am waiting for an import call- job offer and I can't afford not to have a phone (which I have a proof of) hence I opted for the Foneyam, the 1 I had was giving me problems. The supervisor was very rude and failed dismally, ended up paying for something I did not budget for. Going forward how do we go about solving the extra R61.21 since I did not budget for it. Thank you.