Amazon selling

Hey all
I have a few things. I would like to sell on amazon
Havent sold on amazon before, im trying to set it up as an individual plan and not professional plan, the pro plan is £25 a month and the individual plan is £0 but have to pay £0.75 for each listing, problem is thag when o go through it all to set up my plan, at one stage it asks for £25 for a month? Why is this when i didnt select this option and is there anyway around it? Thanks