Gas Safety Certificate/Meter Not Working

My Gas Safety Certificate for the flat I let needed to be renewed in August, but because the gas meter was broken (which I hadn’t been aware of), they wouldn’t pass it.

I was informed that the gas supplier needed to fix it, and as the gas supply is in my tenant’s name, only he could make an appointment to make that happen.

I asked him to make an appointment to get it fixed, and after quite a lot of to-ing and fro-ing that went on for weeks, he said that he had done so. I made another appointment this week to come back with British Gas, only to find that the meter hasn’t been fixed.

The tenant’s gas supplier will not speak to me or make an appointment as I’m not the name on the account. My tenant told me he’d made an appointment to get it fixed in November, but I have been unable to establish that he has done so.

British Gas has now written to me to point out that I am in breach of the law. What can I do to resolve this situation, please?