@Uptrendsocial Hi there and welcome to the forum.
When you request for a reopening of a self-excluded account, most casinos would oblige to it and make the account active again, unless you have been banned for addictive gambling. In some cases, the account automatically becomes active again upon expiration of the applied self-exclusion period.
Some casinos do not close their customer's account but would ask them to use the self-exclusion tool instead.
Personally, I think the casino may not refund you any of your losses, even if you explain to them that you were drunk on that day. Nonetheless, it may still be worth trying though, so good luck.