You can always try, of course, but I think the chances of getting this reverted after such a long time are very slim. With account deletions, players are granted 60 days long complaint period. After that time, it's unlikely that the case will be reviewed.
Account DeletionsAccount deletions are the most serious punishment in Tibia. They are only handed out if a player has violated the Tibia Rules repeatedly and/or in a very serious manner. Please note that unlike other entries in the rule violation record, entries that result in account deletions do not have to be acknowledged by the account user in order to proceed. However, as with any other rule violation record entry, players whose accounts are about to be deleted are granted a 60 days complaint period.
Source: https://www.tibia.com/gameguides/?subtopic=manual§ion=support#punishments
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