Is it really very common to buy a lower PRICE product  and after receiving it and check discover that it is not good quality, but a fault one? What to do in case like that?

You want to pay lower prices, you get rubbish goods.
Pay a little bit more and ask for quality.

hi there ,this is keywon company ,http://keywon.en.alibaba.com ,we are professional at mobile phones with high quality and also with best prices. most of our phones passed CE.

About your question, no exactly syaing ,normally ,cheap price ,quality maybe not very good as we wish.

but our company have some good qulaity phones but with cheap prices too ,and passed CE. don;t know whether we have chance to cooperate together.

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