Billing higher than usual (even after price increa

Hi there<br> I received my bill for my data at home, and it was 3 times the usual bill. (3700 rand)<br> that was an unexpected knock to the pocket.<br> in addition, my work cellphone has no money on it, it all disappeared. usually i have an excess of R600 (because i don't use it that often), but this my workplace will look into with your Rep.<br> also, my wife's bill in R2000 higher than usual.<br> <br> I need this investigated and refunded please.<br> <br> thank you