Haven't followed this thread for so long after I terminated Unifi 2 years ago but got 1 question now: My sister just terminated her Unifi account & moved to another ISP. 1 month notice has been served, online account also has been terminated but receive no call/sms/email notification to return the modem.

Can just walk in to any TM Point outlet to return the modem?

Last time when I terminated mine, the 1 month notice wasn't introduced yet. I just walked straight in, fill up the forms & return the modem.

Noted. So I'll just give them a call first to confirm & go to the designated TM point (if any) to return the devices