can't upgrade?

Hey I was curious. I upgraded last year from 5 to 6 and would really love to upgrade to 7 but says I only get 1 upgrade. So will I have to purchase the whole program again to enjoy 7?
I only upgraded from 5 and got a whole new key for 6 so kinda confused. I only get 1 upgrade or crossgrade period or just per key?
I really do not want to have to buy the whole thing again for the new goodies and I probebly won’t as much as I would love to. :’(

I think you shoud contact Toon Boom customer service from ;D