The signature of the payee of the receipt issued by the study agent is printed, but is it valid to have a single number and an official seal?
If the other party receives your money, you must issue a receipt and affix the financial seal of the other party's unit. If there is no financial seal, only the signed receipt has no legal effect. Stamping the financial seal means that the other party's financial department has confirmed the receipt of your money. If the other party's cashier leaves with the money, and the receipt given to you by the other party is not stamped, it means that the other party's financial department has not received your money, which will cause a lot of trouble.