Excuse me: how to cancel all services of Unicom? I went to the payment hall, and he said to call 100 10, but I couldn't. What should I do?

Changing a card is obviously a last resort. If you want to close all your services (excluding monthly rent and caller ID), just send 0000 to 100 10, or directly dial 100 10 for manual service, and they will try to help you solve it. Might as well go directly to the business hall, but that's it. I hope your problem can be solved well.