Bad service

We waited 9 days to sign our cellphone contract. Yesterday 16 December 2021 we purchased a uncapped wifi deal. We were told tp return on Monday 20 December 2021 so we can consult with IT so he can sort out our APN. We got his cell number from our sales agent we phoned and he was extremely rude. He phoned us at midnight and this morning when i returned the call he did not recall phoning us. I phoned the MTN advisor she promised to send me an email with steps as to how we can get our wifi up and running i am still awaiting the email. MTN HEMIMGSWAY MALL EAST LONDON your service is absolutely disgusting !