Wiring diagram of electric meter 1: Is the incoming line of 3 meter 1 the zero line and 3 the live line? Is the outgoing line at 22:4? Is 2 the zero line and 4 the live line

Wiring diagram of electric meter 1: Is the incoming line of 3 meter 1 the zero line and 3 the live line? Is the outgoing line at 22:4? Is 2 the zero line and 4 the live line

1 live line; 3 zero line; 2 live line; 4 zero line

Wiring diagram of household electric meter
Generally, the four terminals of home and electricity meters are: from left to right, one live wire goes in, two live wire goes out, three zero wire goes in and four zero wire goes out. However, in my rental house, three wires are connected to the terminals of one live wire in and three zero wire goes in, and the others are connected to one wire, and the fuse in front of the meter is also replaced by 3mm copper wire. So I want to ask if someone else is stealing electricity? Urgent! Urgent! Urgent!
When I first lived, I didn't care. At the end of the month, when the landlord collected the electricity charge, he told me that I used 116 kilowatt hours of electricity this month, which scared me to death!
Home appliances only: an induction cooker, an electric rice cooker, an 800W soybean milk machine, a 20W fluorescent lamp!
Please give me some advice!

1. 3 is the incoming line of the meter, 2; 4 is the outgoing line of the meter, which is the load. The power consumption of 2; 4 is the power consumption of the meter. The number of wires connected to 1; 3 will not affect the meter. As long as there are no other wires on 2; 4, it's OK. Don't worry! No one uses your home appliances