TM contact after death - what to expect

My cousin died unexpectedly at the end of August 2023.  I contacted TM and paid by phone for two more months of service for his individual post-paid account so that his sisters could continue to access information in his phone as they settle his affairs. The CSR who took payment said that TM would be calling me on Sep 23 btw 8-10am to follow up, but didn’t know the purpose of the follow-up call.  Can anyone shed light on what TM will be wanting to achieve with that call? TIA!