When an efficient way to get unbanned comes out, It will be on the first page. There is a way to get "unbanned", but It is quite limited as It will require the use of other PS3 ID, so you can still get banned while also getting that other PS3 banned. I'm sorry buddy, but you were using a CFW, just like there is always a risk of bricking your PS3 while installing It, there is also the risk of getting banned while using It, you should be aware of those risks before installing a CFW to being with.
It's not really a surprise you got banned, you weren't just on CFW, you were also using cheats! Just like Hernaner28 said, abusing Sony good will of was probably what caused them to get back with the ban wave. My reason for not helping you isn't that thought, just keep that in mind, If there was a better way to get unbanned I would let you know.
With that being said, I will lock this thread, please, don't make another one as It's pointless, people will give you the same answers, you knew the risk.