Start here: Serving a proceeding package or eviction notice is not the same as ordinary correspondence. BC law and RTB procedure distinguish accepted methods and rules for presumed receipt.
What to check first
Identify which document you are serving and whether the relevant statute requires special service, registered mail or an agreed email address for service.
Next steps
Keep evidence of the precise method and date, and count receipt rules before assessing any deadline.
Important exception or mistake
Putting a document somewhere or emailing an address that was never provided for service may not satisfy the legal requirements.
Keep for your records
Keep the original notice or agreement, messages with dates, payment records, proof of delivery and any hearing confirmation. The rules can differ depending on the request and how the papers were delivered.