We are members like you, and order number tells us nothing as only you can see details. Item number would be more helpful.
You say you received an email, do you mean a message through ebay, as there woukdt be no ebay restriction on replying to an email.
It is likely that your reply was rejected, not because it was over 90 days, but included something not allowed, or misunderstood, by the bots. that monitor messages, such as the measurements.
