DO NOT BUY MTN DATA BUNDLES VIA STANDARD BANK APP

I purchased data on my Standard Bank app a few times and realized that after a few days it’s been exhausted which is virtually impossible. After querying this with MTN I was told that this is a weekly package. No where on the banking app does it have an option for daily, weekly or monthly which is totally ridiculous as no other service provider is doing the same thing or trick if you ask me. This is **************** and will not accept this. Please advise on how you will be refunding me as no one in the world would make purchases for a weekly bundle????