Watch Costco receipts for price drops for 30 days
The poster uploads his Costco receipts to Grok Bot and tells it to check every week for 30 days whether anything he bought has gone on sale. Costco refunds the difference if the price drops within 30 days of purchase and you ask for it. He shares it as a tip that works with Grok Bot, Dots, Muse or Claude.
Copy this prompt
Here is my Costco receipt from [DATE]. Make a list of every item with its price. Once a week for the next 30 days, check costco.com and the current Costco deals for each item. If any item is cheaper than what I paid, tell me the item, the old and new price and the difference. Remind me on day 25 to ask for the rest, so I don't miss the 30-day window. Don't contact Costco yourself.
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
- Costco says online purchases that drop in price within 30 days can get a price match through its online form. For warehouse purchases, you ask at the returns counter of the store where you bought it.
- Costco doesn't match warehouse prices for online orders, and it doesn't match other stores.
- Sale prices with set dates must be claimed while the sale is still running. Weekly checks can miss a short one.
Where this comes from
Original post by @austinjunkfish on X, Oct 24, 2026. We rewrote it in our own words. The result is what the poster reports.
Read the originalWant to do this yourself?
Our guide compares which agents can do this job, with steps and a prompt.
Get money back after a price drop
You bought something and the price fell soon after. An agent can check the store's policy, contact support and ask for the difference.