Generally speaking, if you cancel a case on eBay, you usually cannot file the same case again. Once you cancel a case, eBay usually considers the problem to have been resolved or to have been satisfactorily resolved.

However, if you still have problems after canceling the case and need further resolution, you can try to contact eBay through other channels.

Here are some possible options:

1. Communicate directly with the seller: Try to contact the seller directly to explain your problem and seek a solution. On eBay, you can send a message to the seller through the "Contact Seller" option.

2. Use eBay's customer service support: If communication with the seller is fruitless or you cannot contact the seller, you can try to contact eBay's customer service support. You can visit eBay's website and look for their customer service contact methods, such as online chat, phone support, or email support.

3. Submit a new appeal: If you think the canceled case has not been reasonably resolved, you can consider resubmitting a new case. Before submitting a new case, please make sure you have sufficient evidence and detailed description of the situation so that you can better explain your issues and requirements.

Please note that eBay's policies and procedures may vary depending on the specific situation, so it is best to refer directly to eBay's official guidelines or contact their customer service team to obtain the most accurate and up-to-date information and advice.