这样的邮件该怎么回复？

请查看一下的邮件，请大神们知道指导：
why would i pay more for samples than i already pay from my current supplier. there is no incentive for me to switch. you wanted my business and now you ask me to pay more. if the quantity is big enough, the best you can do is match what i already pay. that’s not how this works. i don’t care if samples cost more. i do not accept your pi and i will not respond to anymore emails. we he wasted enough time.
thank you and good luck in your future. good bye,