Hello,
I cancelled the other day my subscription and I received the mail regarding return of the devices, but I’m confused, are those bullet points, or ZEROs?

so does it mean I do not have to return anything?
Furthermore it says that on the 23rd (yesterday) you have tried to charge for the month of June and it failed.. this is really weird?

there is plenty of availability on my account to cover that, plus on my bank account i do not see any failed transaction from you.