I got a temporary card of Unicom last year. It was abolished this year. I changed my number this year, but many things have to be verified by SMS before logging in. What shall we do? Can we solve it?

You can provide your old mobile phone card and ID card to the local business hall to see if it can be reopened. If not, there are many websites or clients that can re-bind the mobile phone after verifying the identity information in other ways, depending on which website you log in to use. You can also ask the customer service of relevant websites for help.