What do you think the way I structured my sentences? Please advise how I can improve them Thank you in advance
I learned from UPS that they couldn't delivered my parcel because I owed them £40. I have left a white envelope on your drawer. In the envelope there is £40, please use it to pay the courier when they deliver the parcel today.
I learned from UPS that they couldn't deliver my parcel because I owe them £40. I have left a white envelope in your drawer. In it there is £40 .
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I learned from UPS that they couldn't deliver my parcel because I owe them £40. I have left a white envelope in your drawer. In it there is £40. Please use it to pay the courier when they deliver the parcel today.
or
UPS has told me they couldn't deliver my parcel because I owe them £40. I've left a white envelope with £40 in your drawer. Please u