****ed off client

I have made payments twice I sent my reference numbers for them to be able to trace it as I used their option of paying my account *120*410# now they want me to sent proif what bull **** i am not going to sent my personal bank statements due to sheet strees un usefull personel that can't look proper i did the one payment the same as the other and they only see one payment but all of a sudden they don't see the first one bow the askimg more on my account even made my account more than what it is!!!! I also sent the sms screen shots of the payments I did and now they still making this ky problem...I am sick and tierd of accounts departments that can't do their jobs proper now the want to make the clients lifes hell due to their negligence to look they have extra money in their account but seemingly they can't see it they just pocket the money