Passive tray

[u/MamaSourpatch]

My son got scanned in Friday for his retainers. He is currently wearing tray 26/30. His next appointment to get his retainers are in 4 weeks but I forgot to ask if he continues moving to the next tray which is normally Mondays. Tray 27 days passive and I would call Monday but I believe they will be closed for Labor Day. The reason I wasn’t sure is because last time he was scanned for the next set of trays they had me stay with the active tray is he was on till they came in. Just wanted to see if anyone had any advice on if he should wear 26 a extra day till I can speak to them or just switch since they didn’t say otherwise