Customer service reps need training

The bill details every single item that is billed. So when you look at a previous bill compared to the current one....which item is more? 

Yes the amount is different but in what line items are the prices different.

This is a user helping user forum. We can't see your bill. You need to compare every line item and see where the difference lies from one month to the next.

If you can tell us where the differences are, maybe someone can offer a suggestion of help.

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@azlady12 wrote:
Also it's not my job to go line item with my bill or my job would be at AT&T. Everything should be accurate. I'm sure I'm not the only one with this issue. So I guess there is no resolution with your responses I may just switch to a different carrier and take all my 4 lines. Someone will appreciate our business.

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It is your responsbility to go line by line on your bill to ensure everything is correct. Additionally, that is the easiest way for you to figure out what the difference is. 

There is a resolution in all of the responses, you just don't seem to want it. The resolution is simple: Read Your Bill! That's not really an outrageous suggestion, and it will follow you no matter what carrier you move to. 

I'm with @MicCheck on this. Reading your bill is your responsibility. If it's not your responsibiliy then ATT and all other companies might just as well send you the amount (no line item or explanation) and wait for you to call them to find out why.