Multiple sellers accounts?

hi everyone so basically due to customer service telling me to make a new account when i first signed up … due to a deactivated account because one of my items was flagged as unathentic even though it was real but because my invoices from my supplier had multiple items in each product … amazon won’t allow my evidence because you need each item your supplier supplies to you needs to be the actual item only and not a joblot of items … so they basicalley F***ed me over there… so now i have like 4 accounts and i don’t use non of them because amazon seem to make life hard for new sellers … but i really need to sort this issue out and start selling on amazon i have about £20,000 of jewellery and ebay is to saturated and i am not selling on ebay without tracked and signed as standard delivery just ruins your feedback as you get customers who will damage your 100% feedback … all the jewellery is my own so i will have all the packaging ect so i can put brand new barcodes on each products like the ASIN numbers …i just need the right direction as their is to many hurdles for decent sellers