eBay secretly over charged sellers

"EBay has always been charging sellers 10% + 3% for PayPal. That’s $13% off what the seller gets! Capitalism triumphant!"

eBay separated from PP a couple of years ago and is now handling what PP did in house. The final value fee (in many categories, not all) is 12.55% + $.30 listing fee per order. In the year before the split with PP, the fee was 3.5%. So that is $550.00 for the sale minus $69.02 FVF + $.30 listing fee for a total of $69.32. $550.00 - $69.32 = $480.68 - $476.53 = $4.15 short. My guess is that the additional amount was a credit card fee, from the buyer or he might have listed it in the wrong category.

BTW: I sell tons of stuff, mostly non audio related on eBay and think that what eBay provides in terms of exposure, easy format, ease of shipping and general customer support is a bargain.

https://www.ebay.com/help/selling/fees-credits-invoices/selling-fees-managed-payments-sellers?id=482...

I sell a lot of smartphones cloths and electronics that’s  why I can’t post here Audiogon 
after speaking with another  eBay representative he told me this : the buyer is going to pay tax on my item so whatever tax applies then they’re going to charge me 12.55% of total amount 
For me this means they’re misleading us with 12.55% they’re lying 
why do you have to charge me the money I did not receive? So if the buyer is going to pay $20-$40 more for tax why do you have to charge me as a seller on that money (tax)  I’m not going to receive? Doesn’t really make sense 
If so then we all sellers are paying separate TAX  before fees so the BUYERS 
when you go the details of the transaction all this tax BS is not there only shows fees 

Before PayPal and eBay got separated I never pay more than 3% on PayPal  or 10% eBay so I don’t know 🤷‍♀️ where 3.5% PayPal fees  you’re talking about 

@dill the item I sold was local pick up so shipping does not apply 
technically what they’re doing is add the tax amount to the final sale price so they can charge you more that’s scam 
so my case they’re charging me 12.55% base on $583 instead of $550 I sold it
what a scammers 

Have you looked in your seller hub for a deduction to cover that amount? I wonder if it is a surcharge since eBay is now handling the tax money. I live in a state with no sales tax so I get no tax info.