please check the sentence

Hello

Would you please correct the sentence?

  • We paid 34000 euro for purchasing 2000 M/Ts barley from your company but only 1500 M/Ts was shipped, so you are kindly requested to pay back the balance which is equal to 10200 euro.

Thank you.

We paid 34000 euro to purchase 2000 M/Ts barley from your company, but only 1500 M/Ts was shipped. Therefore, please would you kindly refund the balance which equals 10200 euro.