There is no official limit to the number of times eBay can modify a review link, but it is generally not recommended or encouraged. eBay encourages buyers and sellers to leave feedback as soon as possible after a transaction is completed to ensure that the transaction is recorded fairly and accurately.

If a seller's feedback rating is affected by negative reviews, they can work to improve their rating by providing excellent customer service and resolving any issues quickly.

If you have concerns about feedback you receive, you can try to contact the seller directly and seek a resolution.

You can also report a seller to eBay if their behavior violates eBay policy.