Bad Customer Service

On the 15th of January 2025 I phoned their Contact Centre and spoke to a lady by the name of Anelisiwe whom I asked to get her manager to call me back which she never did, I ran out of data on the 13th of January, I normally receive 50GB after my upgrade, even my night surfer was sitting on 43GB when I've never used it so I asked if I can get a report or someone that will explain exactly what happened, Later on the 15th I got a call from Anelisiwe asking me if her manager phoned me and I told her no! she told me upon the findings that her manager did she mentioned that they could only locate 37GB but till this day I haven't received any feedback, Anelisiwe sent offered to send me airtime as compensation while the investigation is being done and loaded R80 airtime and asked me to convert it to data, but to my Suprise that airtime is decreasing each day without me using it, the next day it was on R73 already and today it on R62 so I don't understand what is going on and I need clarity on this