Saved by their tickets (bad customer support stopped me from a huge mistake!)

I was actually going to change over to fibre with Supersonic, as I have had connection issues, but nothing mayor, the customer support is terrible. I have been asking from last month into this month regarding the LTE Router's return at the end of this month, and not one ticket has been resolved or rep**** to since 14/08 and last 11/09 and today I almost signed up for fibre. Thanks for keeping the tickets, as I read people struggle to return the router, and with debit orders at the end due to that. I almost made a huge mistake. Thank you for reminding me why I cancelled.