I am so sorry that i could not help you to get this package and also delivery company only pay 30% of the loss.Even it was not my fault,i would like to offer you a compensation of 30% as well
我非常抱歉不能帮你得到这个包裹,并且快递公司职能赔付30％,即使这件事不是我的责任,但是我仍然愿意补偿你30％
一楼二楼有语法错误.
而且同样的词汇运用过多,句子没有很好的用介词连接起来.