Hello :) maybe someone can help us?

Hello,

My name is Casey and I am writing on behalf of my partner who has recently moved from the UK to start a life with me here.
We are both extremely happy to have finally applied for his BVA which was granted almost Immediately.

However, it initially escaped our notice that it wont be put into effect until his current visiting visa expires which is extremely inconvenient as he was offered a job opportunity starting next week. This opportunity is not the kind that will come around again soon so we are eager to know whether or not the visiting visa can be cancelled or if the granting of the BVA still allows him to start work immediately.

We will ring up tomorrow but are wondering if anyone would know the answer to this as it's after calling hours.

Many thanks to anyone who answers!