We always meet some problems with the goods we bought, especially in small stores,so it's necessary for us to ask for invoice when you pay for it,and remember to keep it well.Because it will be a necessary to return or exchange ,even get free repair in official shop of the manufacturer in a period.Of course,for latter one,plus a guarantee card.

Let's learn some expressions when you meet problems like this.

Excuse me.I'd like to return this. / I'd like to get a refundon.

Excuse me.I'd like to exchange this.

Then the principal will ask you what the reason is.

What's the problem?

Tell him the problem of the goods such as:

It's the wrong size.

The internal attachment is damaged.

The button is of no effect.

And the principal may ask you:

Do you have the invoice?

Generally you may easily find phone numbers of official repair shops on guarantee card.Make a call and ensure if they are still on work.Date a time and take invoice and guarantee card there.

Do you have the guarantee card?

Show them the invoice,guarantee card,and the goods.

There's no such service for some goods in special price.You'd better ask details and have a good examination before you take it.But if the store or emporium break promise, you may dial 12315 (Consumer hotline in China) for help.