Dear skglobal2021,
Greetings from team eBay!
We are sorry to know about your issue, however be assured we have sent the details further and you would soon be contacted by your assigned account manager.
With regards to details on what exactly are selling limit, how they work etc please do read the information on our seller center : https://sellglobal.ebay.in/seller-center/selling-limits-zero-insertion-fee/
Regards,
eBay INCBT Team