New here, trying to set up. Selling privaliges temporarily Removed?

all I can find on this is that my sales have had back reviews and I need to fix them… but I havent even listed an item yet??

I only just looked into selling on amazon and I would like to use FBA but im struggling to find out how…

i’ve found suppliers and some ideas on what to sell.
however If I made an order with a supplier, where do I send it? I cannot find any address for FBA centres?
then how can I link my delivery to my account?

ive been researching for ages and cant seem to understand the whole process. also is there a contact phone number for amazon?

thanks