Guarantor suspected joint SMS

Just confirm some details, such as whether your signature was in that year, whether you have your ID number, or other confirmation procedures/links. If not, it means you don't know, and of course it won't be affected. If it is signed and confirmed in that year, it needs to bear the joint effect.

Better make sure. The biggest influence is credit, which is useless now. If you need to buy a house, you will look at the credit when you get a loan, which will have a little impact.