Need help with subscription fees

Hello,

I am an Amazon seller in Canada. My monthly subscription fee charged by Amazon Canada changes monthly but remains around $25 CAD. Amazon US charges me $0. Amazon Mexico charges a different amount monthly but approximately $50 CAD. I don’t understand why it’s happening and it’s been going on for a long time, Amazon MX withdraws from my bank account despite not having my valid charge method, only Amazon Canada does. My account is deactivated because they say I owe thousands of pesos. I asked to have Mexico removed from my account years ago but was told that isn’t an option. I do not have inventory in US or Mexico nor have I ever had inventory or sales other than in Canada. I’ve received regular payments until suddenly being deactivated – I have $500 in net proceeds that they won’t release to me now; I have documentation of a lot of this and it’s a much longer story, it has been traumatic and has gone on for so long. I am contacting free legal aid but don’t expect to win.

What amount are other Canadian sellers being charged? I’d like to know if this is in fact common.