Terrible MTN service

We bought & activated a new MTN router & Sim card from PEP stores, then bought R150 airtime to recharge the sim. Neither did the airtime reflect nor was there notification for the successful recharge. I tried a R25 voucher which reflected then topoed up with R100 to convert to data. I called MTN customer care to enquire about the missing the R150 & spoke to Iviwe Somdaka, narrating events as they happened. She was so rude & unprofessional, telling me that I subscribed to at least 4 daily services such as showmax etc (how when the sim was brand new) and blamed that on me having purchased the Sim card from PEP stores. Said we should only buy Sim cards from MTN stores. I asked her who did they tell & when that we shouldnt, worse why as MTN allow PEP to sell their Sims if they know theres issues. She didn't bother to log a call or escalate the issue, when I asked to talk to her supervisor or senior she transfered me to a junior colleague & refused to provide me with a call reference number upon requesting one. I checked what services the Sim is subscribed to after and it said none. I want my airtime/refund otherwise I wont be using the simcard again