Hi, thank you for your question. As it is a joint account you are both equally entitled to it and going forward it will be in yoir interest to set up your own account. You should contact the bank and inform them of the separation and ask them to put a hold on the account to prevent withdrawals whilst you try to reach an agreement with him. If there are substantial savings in the account and the bank dont assist you can apply to court for an injunction to prevent him accessing the account.
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