No receipt, no warranty repair, and a bot that filed a complaint
His battery string trimmer broke after about two hours of use, but he couldn't find the receipt, so the company wouldn't repair it under warranty. He had his Grok Bot call them back the next day. After about five minutes they hung up on it. The bot then filed a Better Business Bureau complaint, which he jokes made it a "Karen Grok Bot". He doesn't say whether the complaint changed anything. The lesson is less about the bot and more about proof of purchase: a warranty claim usually needs a receipt, an order email or a card statement line, and a phone call can't replace it. Many brands also let you register a product online, which can stand in for a lost receipt.
The lesson: Find proof of purchase before the call, and decide yourself whether a complaint goes out in your name.
Copy this prompt
My [PRODUCT] stopped working after [HOW LONG]. Before contacting the company, search my email and card statements for proof that I bought it: an order confirmation, a store email receipt or the charge on my statement. Also check whether I registered the product with the brand. Then read the warranty terms on the brand's site and tell me what they need. Only then call or use their claim form. Don't file a complaint with the BBB or anyone else without asking me first.
Our own prompt, written from what the source describes. We haven't run it ourselves. Text in [BRACKETS] is what you replace.
Watch out for
- A card statement line or an order email often works as proof of purchase. Have the agent look for one before it calls.
- A complaint filed by your agent is still a complaint in your name. Ask it to show you the text before it goes out.
Where this comes from
Original post by @boywhocriedfsd on X, Oct 30, 2026. We rewrote it in our own words. Check the original for the full context.
Read the originalWant to do this yourself?
Our guide compares which agents can do this job, with steps and a prompt.
Have an AI agent call customer service for you
Phone menus, hold music and being passed between reps. Some agents can now place the call for you, ask for what you need and send you a transcript, while you approve anything that matters.