Day light ******* with Data

i have a huge complaint and ii would appreciate if MTN can actually explain this to me, they are well aware that a lot of people having buying a lot of data because of most of us are still working even though we working from hoe and if the check my number i have be buying a lot of data and the data does not even last 30 min not even 10 min to be accurate because Monday i bought 240MB, Tuesday i bought 270MB, Saturday 300MB, the worst was yesterday i bough 330MM at 11:00AM gone in 5+ min again same day 330MB @ 19:21PM that vanished at a blink of an eye, i believe this is day light ******* they people have been struggling but they still doing this. its not fair and i kow i dont have any subscription they must not come to me with that old trick because its not going to work with me they must just stop robbing people.