check grammar " H was banned May 2024. R ended a year ago, informed H that we cannot create invoice since trip ended October 2023, 180-day period has passed as of September 2024"

The sentence contains several grammatical issues and could be improved for clarity. Here is a revised version: "H was banned in May 2024. R, who ended a year ago, informed H that we cannot create an invoice since the trip ended in October 2023 and the 180-day period has passed as of September 2024." If you need further modifications or have a specific style in mind, please let me know!