Appeal to MTN on persistent subscriptions and humbly requesting reimbur*****t

I have been a loyal MTN customer on all of my celular usage. Recently, I am bombarded with "Flash Messages" appearing persistently on my screen. When selecting the "cancel" option the message persists to such an extent that I am forced to restart my mobile device to get some peace. On 4 seperate occasions I am enganged in my daily work life and miss the "cancel" option. I then get SMSes telling me I am subscribed to some sort of ridiculous service that I did not knowingly consent to. The last of these incidents occured on 22 June, R15 was deducted from my airtime - leaving me with a meagre R8 for an important call I had to make the next day - apparantly I was now subscribed to a "Davinci Azoomi kids" service. What is that even? I feel ****** and without any power - please take the humanity of your subscribers into account. R15 is a lot for some of us. I want to appeal to be reimbursed for this incident and I have photographic evidence to support my claim. Please advise, Miss Althea Hugo