Do you have to cheat or cheat in marketing to succeed?

Recently, I have encountered many such incidents and found that some of my peers often cheat customers, and my suppliers also cheat me. I am wondering, below are some typical events:

1. Recently, I have been supporting an old user of wince. I asked if I could expand the memory of my s5pv210 core board a little, saying that my board is good, that is, the memory is too small, only MB of DDR2 memory, which is several times larger than XXX's s5pv210 core board, but you are as expensive as his board ...... then the customer thought that I had screwed him up, but because I used to provide strong technical support to him, I just sent out some situations that made him unacceptable. My heart is cool, that development board company is right, it is 4 GB, but it is 4G bit, and I am 512 M byte. This is the same thing! Oh, sometimes customers are easy to be fooled. What should I do? I really think we have to do the same. In other words, this is actually misleading the customer, because the customer must think that 4G
Byte, etc. The nand of the next 256 M byte is also changed to 2 GB. O (distinct _ distinct) O ~

2. I recently selected a 4412-inch LCD for the Samsung exynos 9.7 Board. This guy was supposed to ask for two cash-on-delivery items, and he said he would send me one more piece, later I thought there was nothing and I paid for it. He also promised to return the goods if he couldn't. When I found it inappropriate for a few days after debugging, he offered to return the goods. At first, he still answered the phone and said it was okay, but then he did not answer the phone, qq does not reply, email does not reply, and SMS does not reply. I made dozens of phone calls and QQ messages continuously. After several days, I realized that I was fooled again! Well, isn't it three screens, but less than one thousand screens? As for doing business like this ?! This kind of person's information and company information should be disclosed. It's really hateful, and there's no credit.

In China, there are a lot of fucking dummies and many others are not responsible. Why is the environment so bad? Must you be fooled to do a good business?