SuddenLink Customer Service Issues

I woke up today to find my service disconnected by you due to missing statements. I typically pay my bill promptly using my bank's bill pay service. The last bill I received covered the period from 12/18 to 1/18. I did not opt for eStatements and have been paying $1 monthly for paper statements. If I had received all my statements, I would have noticed the missed payment before the disconnection. I just made a payment of $[redacted].28 based on the last statement I received. I need to resolve this issue promptly.

I canceled our Suddenlink (Optimum) account [redacted], PIN#[redacted] in early April [redacted]. The representative assured me the account was canceled, but I need to return the modem. I tried to request a UPS label at OPTIMUM.NET/RETURNS, but it requires a password I can't remember. Being in our 80s, we are struggling to access the label. I must return the modem to stop the monthly charges for a service we no longer use. Please assist me. You can email the label to [redacted] or send it to [redacted] Washington Irving Dr., Colfax, CA [redacted]. Your help is appreciated.