What the source did
- His telco bill covered 2 internet lines and 2 mobile plans. He had his finance bot go through all of it.
- The bot read his telco bills and order emails and tagged every number as verified, derived or unknown.
- It found the levers: the switching fee, the contract lock-in, a price jump in month 25, and a Disney+ subscription he'd forgotten, which had crept from about €11 to €16.
- It drafted one message for the telco's contact form: a loyalty offer for his 3 contracts, a price comparison with 4 cheaper providers, cancel Disney+, and merge his accounts for a family discount.
- He rewrote it a few times. His rule for the ask: request their best offer, don't name a price. Then he sent it himself.
- The telco called back with an offer covering everything asked for. Merging the accounts turned into a 15% loyalty discount. He says he didn't have to negotiate; he just said yes.
- What came out: switching fee waived, one internet line about €9 a month cheaper (the other unchanged), Disney+ gone, both mobile plans cheaper plus the 15% loyalty discount, and an existing bonus kept.
- Two days later the finance bot compared old and new, and a separate fact-check bot re-checked every number.
- He puts it at about €39 a month, €469 a year. The "$1,000+" headline is his two-year figure converted to dollars.
- Heads-up: he says his content bot wrote the post in his voice and he fixed the hook. The savings are his figures; we didn't see the bills.
“ask for their best offer, dont dictate a price”— Legendary (@Legendaryy), X
Summary written by Agent Cookbook from the original post. See the original for the full context. How we source recipes
Our notes
- What it takes
- Grok Bot (he used a finance bot plus a separate fact-check bot), your telco bills and order or contract emails, prices from a few cheaper providers, and your provider's contact form. He shared no template; ours is built from his post.
- Where it breaks
- Naming a price instead of asking for their best offer, a calculated number slipping into the message as if it were on the bill (he tags each one verified, derived or unknown), and a cheaper offer that changes speed, data or contract length.
- Human checkpoint
- The bots read, compare and draft. You rewrite and send the message yourself and say yes or no to the offer; no bot sends, pays, cancels or posts without your yes.
- Tools involved
- Grok Bot (he used a finance bot plus a separate fact-check bot), Your telco bills and order or contract emails, Prices from a few cheaper providers to compare, Your provider's contact form or support email
✓ Verified Source link checked and still live. Notes by Thomas, editor. How we verify
Copy the prompt
Ours Our version, built from his post. He shared no template or prompt. Fill in the [BRACKETS].
You're my telco bill analyst. You read, compare and draft. You never send a message, cancel a service, change a plan or pay for anything.
I'll give you my telco bills and the order or contract emails for each line.
1. List every line and service I pay for (internet, mobile, TV, streaming add-ons) with its current monthly price. Tag each number: VERIFIED (printed on a bill or contract), DERIVED (you calculated it) or UNKNOWN.
2. Find the levers:
- Contract end dates and lock-in periods
- Scheduled price jumps (for example, a promo that ends in month 25)
- Switching or cancellation fees
- Add-ons or subscriptions I may have forgotten, and how their price changed over time
- Whether merging accounts could get a family or bundle discount
3. Find current prices from 3 or 4 cheaper providers for the same speeds and data, and show them side by side with mine.
4. Draft one short message for my provider's contact form or support email. It should:
- Say I'm a loyal customer with [N] contracts and am comparing providers
- Include the price comparison
- Ask them to waive the switching fee, cancel [forgotten add-on] and merge my accounts if that lowers the price
- Ask for their best offer. Don't name a price.
5. Wait. I'll edit and send it myself.
6. When an offer comes back, compare old vs new line by line and recheck every number against the source documents. Flag anything that doesn't add up and anything the offer changes besides price (speed, data, contract length).
Approval rule
🛡
The bots read, compare and draft. He rewrote the message and sent it himself, and he said yes to the offer; his rule is that no bot can send, pay, cancel or post without his yes. Sending, buying, posting, and deleting always need a human.
Set it up
- Download your recent bills and dig out the order or contract emails for each line.
- Give them to the bot with the prompt above. Check the VERIFIED, DERIVED and UNKNOWN tags; fill in what's unknown yourself.
- Look at the levers it found, especially price jumps and forgotten add-ons.
- Edit the draft until it sounds like you. Keep the ask open: their best offer, not a number.
- Send it yourself through the provider's contact form.
- When they come back with an offer, have the bot compare old and new. He used a second bot to re-check every number.
- Say yes only if the offer holds up, then check the next bill.
Common failures
⚠
- Naming a price. He asked for their best offer, not a number, and the telco came back with everything the message asked for. A number you name can cap what they offer.
- Mixing up guesses and facts. His bot tagged every number verified, derived or unknown. Without that, a derived figure can end up in the message as if it were on your bill.
- Missing the forgotten add-on. His Disney+ had crept from about €11 to €16 without him noticing.
- Accepting a cheaper plan that's slower or locks you in longer. Compare what changes besides price before you say yes.
- Counting the multi-year number. His €39 a month is the saving; the $1,000+ is two years of it.
Variations
- Use two bots. He had one bot do the analysis and a separate fact-check bot re-check every number before he trusted the result.
- Let it negotiate in chat instead. If you'd rather have the bot work the provider's support chat itself, see the Xfinity and phone-bill setups, where a person still approves the final deal.
Related setups: Bill: a Grok Bot cellphone bill auditor → · Grok Bot that haggled an Xfinity bill →
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