Get a membership address changed after two reps say no
A bug in the Costco app stopped the poster from updating the address on his membership, so he asked Meta Muse to sort it out by phone. He says the first rep told Muse to do it online or in a store, the second wanted to speak to the member, and the third made the change. He never sat on hold himself.
Copy this prompt
I need to change the address on my [STORE OR SERVICE] membership, number [MEMBERSHIP NUMBER], from [OLD ADDRESS] to [NEW ADDRESS]. The app won't let me. Contact their customer service and get it changed. If a rep says no, ask what they need and try again later. Tell me what each rep said, and check with me before you share anything beyond my name, membership number and the two addresses.
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
- Some companies will only change account details with the account holder on the line. Be ready to join the call or confirm by email.
- Ask for a confirmation or reference number at the end of the call, and check the change in the app afterwards.
Where this comes from
Original post by @kylemissionai on X, Oct 20, 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.
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.