Pulling more than 50 amps ?

Now, this discussion points to a BIG problem with older Campgrounds. The Idiot Electrician may be at a CG that is "wired" for what they call 50 amp service. They have just 1(one) 50 amp breaker split between the 2 HOT leads on the 50 amp cord. Technically, I guess, you could call that 50 amp service, but it is NOT as it relates to a 50 amp RV. I call this CHEATED 50 AMP SERVICE. You are charged for 50 amp but they are NOT giving you TRUE 50 amp service. I find this fraud and dishonest. If you have a EMS system on your RV, that system will tell you when you are on CHEATED 50 amp service. It will see that LACK of out of Phase leads and only allow the Rv'er to utilize 30 amps of that 50 amp service. This is what confuses RV'ers. They plug into a 4 prong supposed 50 amp plug and they cannot run all their 120 appliances because the EMS system locks them out. So they think their EMS system is bad. ALL RV'ers should have a digital multitester. If you do not have double the line voltage between the 2 hot legs, you are NOT on 50 amp service. Very simple and needs to be done at every park you go to. Doug