You stated you cant tow, which is in correct.
On a B license you can tow a fair bit.
Depends on vehicle weight, but 750kgs is a fair weight?
You can tow A fair bit.
It says;
The MAM (maximum authorised mass) of the car and trailer combined must be UNDER 3.5tonne.
But the MAM of the trailer may not be more than the unladen weight of the vehicle.
So, in a 900kg civic it's not going to be allowed to toe
Much.
You could only have a 900kg trailer, giving an all up weight of 1800kg. Well within B license limitsz.
However, if you owned a larger car, you could tow more.
Say you own an 1.5ton car, you can then toe 1.5tonne. So could tow a civic on a small trailer with ease
. . Think I've got that right anyway