When Did You Buy A Pair Of Shoes?

Ms. Yang, a member of the public, has been very depressed lately, because buying a pair of shoes has been bothered by her for several days.

In June 2nd, Ms. Yang sent a call to the public. In May 8th, she bought a pair of sandals for 499 yuan in overseas Chinese Fed international counters.

More than 10 days later, when the weather became hot, she took out her new sandals. After wearing it for half a day, she found that the metal hem of the heels of both shoes had split.

In May 28th, she came to the overseas Chinese international Fed counter, asking the salesmen to return the goods according to the requirements of the quality assurance cards of the sandals, and the other party only promised to repair them.

Ms. Yang was very angry. Why did the other party promise to carry out three guarantees according to the quality assurance card before buying shoes?

So she complained to the customer service center of overseas Chinese International. At last, the other side only promised to exchange.

No way, Miss Yang had to agree, but the other side told her that she did not have the same size shoes. Finally, she changed a small size shoe for Ms. Yang, and suggested that she did not wear socks when she was wearing it, but Ms. Yang had to promise to try it.

Three days later, Ms. Yang could not stand the torment of her shoes, and returned to the overseas Chinese to ask for a refund. As a result, the other side only promised her to exchange a pair of shoes with different styles. Finally, Ms. Yang reluctantly changed a pair of shoes that she was not very satisfied with.

However, Ms. Yang's troubles are still unresolved, because after the change of shoes, the other party took back her shoes purchase invoices and small bills.

Ms. Yang is worried that if there are any problems with the sandals now, she does not have these bills in her hands. If she talks with the other side again, how much trouble will she have?