MTN poor network service provider!!

I app**** online for a month to month Mtn home wifi system. First is was through Mondo, the courier came to my adress and wanted my fingerprints, the fingerprint scanner could not pick up my finger print. The guy was rude and told me he's going back to Pinetown with my wifi device, he can't give it to me because my biometric finger prints could not be located, he just said i must go to MTN, i went to local MTN store in Richards bay, i struggled with lots lots and lots of airtime i had to phone out to get the offer cancelled at Mondo! I'm 60 years old and walked everyday to the MTN store here for more than a month to try that they could scan my biometric fingerprints, it was unsucsessful! They just told me to try online again! I app**** at MTN south africa online again, a lady of MTN phoned me, i told her how i'm struggling to get this deal from them, i need for my grand children thats doing home schooling! She said my application is sucsessful and i must pay R652,09 within a hour, i asked her about the biometric finger prints, she said its not a problem, she will add a attachement to say the device must be deliverd manually! When the courier phoned me about delivery, i asked them about the fingerprints, they said MTN did not add a attachment to say the delivery must be manually! I was so so upset! I cancelled the order last month, 15th September, after more than R300 airtime that i phoned out to try and get a refund of my money, still to this day, 12 October i still did not recieve my money back, its excuses upon excuses! I told them i'm going to see a attorney and MTN wil pay my legal fees! MTN is a poor poor service provider and have incompetant people that work there! I want my money back asap!