Found a charge that looks wrong? Follow these steps to dispute a bill overcharge: gather proof, write clearly, set a deadline and escalate if needed.
Companies make billing mistakes, and sometimes they add fees you never agreed to. Most problems get fixed when you raise them clearly and calmly, and in writing.
Find the bill with the charge, an earlier bill to compare, and your contract or plan details. Screenshots of the offer or the price you were told also help.
Write down what is wrong in one sentence. Example: "My plan is $55 a month, but this bill shows $60 and a new $10 network fee."
Use email or an online form so you have a record. If you call, note the date, time and the name of the person, and follow up with an email.
Say what you want: remove the charge, credit the account, or return to the agreed price. Give a reasonable deadline, such as 14 days.
Be short, clear and calm. Stick to facts and dates. You are much more likely to be taken seriously.
This is general information, not legal advice. Rules vary by place and industry.