Yes, in that case it is permanent if the OP isn't lying, but still all the same none of your ways of 'How to unban yourself' work, mac address isn't on the network card, and you can't change network cards, etc cbf going over all this again, they don't work dude!

"There is a common misconception that Sony will ban the MAC address. This cannot work for a number of reasons but mainly because; the wifi and ethernet adapters each have their own MAC address. If you're connecting via a wired connection, you could just change to wireless, or vice versa and the ban wouldn't be enforced. There is also the possibility you can spoof your MAC address but in reality the MAC address does not get seen by anything past the router.

Sony would have anticipated this and taken the liberty to ban your console ID, also referred to as the PSID. The PSID is essentially your consoles hidden serial number that is authenticated against the server via an encrypted connection when you sign in to PSN."

Copy and paste from Playstation forum. If it is true that they ban your console ID then your screwed.