Would you subscribe to a maintenance service that uses time travel to keep you on 100% up time?

Follow me here. This came to me in a dream. The movies and TV often seem to take time travel into ethics and improbabilities. What if we could use it safely and productively?
Imagine you subscribe to a service that comes to you when you need work done. You hand them a deposit. Then they travel into the future when all of the necessary materials are available and affordable. Next they return to the present to complete the repairs. You approve the work and hand write a message to yourself or use some other private code to verify that you approved. They then travel back in time to deliver the repaired equipment before it even breaks down. You get to see the coded message to confirm that you ordered the work. Then you pay and you never lost a minute of up time!
I need to call Elon!
Ell oh ell!
Would you subscribe to a maintenance service that uses time travel to keep you on 100% up time?
Would you subscribe to a maintenance service that uses time travel to keep you on 100% up time?
Would you subscribe to a maintenance service that uses time travel to keep you on 100% up time?
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