My blocked account doesn't even give the option to withdraw funds, maybe support does the withdrawals manually. Lucky I had very few sats in there at the time it was blocked.
If the reason of block is due to the restrictions of certain countries then surely we can delete our LBC account on our own and can take any BTC left in there.
https://localbitcoins.com/accounts/login/?next=/accounts/profile-edit/delete-account/ @OP can use this link to delete his account when he logged into the account and if the still problem exists then contacting support is the only option and I am sure that he can take BTC for sure.
Even if you live in a country which is not restricted by localbitcoins, i will still prefer not to use them because they require very strict form of KYC which includes to show your source of income and salary slips etc. People should switch to other better platforms other than local bitcoins.