dan620684, good evening.
Sorry! but as previous posts.
The responsibility for leaks up to the meter on the incoming supply side of that meter is a problem that will be rectified by your utility provider.
OK.
Now if there is a Gas Leak after the meter, that is from the Meter into your Property [no matter where the Meter is situated] is down to you to sort out, no iffs or buts about it, in effect that is the law! that is the way things are!
Your suppliers Engineer who has cut of your gas supply has in all probability saved your life and the lives of your family?
As previously posted above.
1/. Do you have any sort of "Agreement" with a utility supplier where you can get this provider to, say undertake a boiler service [once a year minimum?]
2/. If there is no such provision for the above then you MUST! [No Skimping] find a "Gas Safe Registered" Engineer to sort out your internal leak.
As above it is the Law ? ? ? that only a "Gas Safe Registered Engineer" dan work on an internal gas supply and in your case a potential Leak.
If you still need convincing try Googling "Gas Explosions" ???
Sorry if I appear somewhat "brutal" BUT?
Simple answer do NOT take any short cuts with a Gas leak
Ken