Closing statement and credit balance refund on contract end

My account with bulb ended on the 31st of July 2018.

The last statement I received showed a credit balance on my account in excess of £200.

The account is now closed, I no longer have access to Bulb online statements.

The credit balance has not yet been refunded, and a closing statement has not been received.

What is the process, if there is one, for the issue of a credit balance refund and closing statement?

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@hugoherrera I’ve sent you an email - we’re still waiting for a final electricity reading from your new supplier so that we can issue a final bill.