If the other party refuses to repay, it is suggested to sue the other party directly, bring the bank transfer record and ask for repayment. The statute of limitations for general loans is 2 years. Look at the repayment period written on the loan slip first. If the statute of limitations is exceeded, collect evidence of asking for money from friends, because asking for money will lead to the interruption of the statute of limitations. The statute of limitations begins when you ask for money. If the statute of limitations has expired and you have no evidence to ask him for money, write a written request for money as soon as possible. If your friend doesn't want his signature, or directly ask him to write a repayment deadline for you, or you can call him for money, record the phone, or secretly record when you ask him for money in person? In short, all these can prove the fact that he borrowed money from you, which can lead to the interruption of the statute of limitations, so he will sue as soon as he gets the evidence.