Frustrated and fed up

I recently joined eBay to sell some items. Their fees are ridiculous they took $100.and left me with $38 they take a percentage of the whole total including shipping which the buyer pays for. Then they deducted from my payout from a previous sale fees for a sale made after were the funds are on hold. Ebay is the worst e-commerce platform I've used. Customer is firstly an AI robot then you are given the option of contacting an agent, which seems they've all been rehe****d to give the same answers and purposely avoiding to answer my main question.