Vodacom AI tobi not helpful enough

Hi there, is anyone else a tad frustrated with the lack of services available from the Tobi AI bot? Don't get me wrong I get it; and its sweet but it doesn't handle complex situations well, or instructions. I have a despute over my account that's in arrears but shouldn';t be because I over poaid it via the vodapay app. Three times in one month and it still says I am 400 short. Can someone please just get back to me on this?