Thank you for your question. I look forward to working with you to provide you the information you are seeking.
Legally, the eBay site is a privately owned site and they have a right to set their rules and those on the site who sell have agreed by signing up to be bound by those rules. Similar to this site here where they set arbitrary and unreasonable criteria which can lead to removal of experts (expecting us to get positive feedback when we have to tell many customers the laws are not favorable to their situations), when you are removed there is legally no recourse as long as eBay is doing this in accordance with their rules and terms of their service I am afraid.
If eBay did this contrary to their policies, then you could have grounds to sue them for breach of the terms of service. However, I am afraid your only right to sell on eBay is contractual based on the terms agreed upon with eBay and the seller.
Legally I am afraid that their site is entitled to set their rules and all you can do is send a written appeal to them making your case for reinstatement with them and that is really all you have a legal right to do in this case.
I truly aim to please you as a customer, but please keep in mind that I do not know what you already know or don't know, or with what you need help, unless you tell me. Please consider that I am answering the question or question that is posed in your posting based upon my reading of your post and sometimes misunderstandings can occur. If I did not answer the question you thought you were asking, please respond with the specific question you wanted answered.
Kindly remember the ONLY WAY experts receive any credit at all for spending time with customers is if you click on OK, GOOD or EXCELLENT SERVICE even though you have made a deposit or are a subscription customer. YOU MUST COMPLETE THE RATING FOR THE EXPERT TO RECEIVE ANY CREDIT, if not the site keeps your money on deposit.
Also remember, sometimes the law does not support what we want it to support, but that is not the fault of the person answering the question, so please be courteous.