I think there can be many reasons for such denial. The rejection can have an impact on this or it can be due to their board decision. So without knowing the truth; we should not spread our own opinions as this makes the people confuse.
Electricity causes the highest amount of damage financially while trying to mine coins; so if you are getting free electricity I suggest you invest all the money behind getting a very good rig worth 30;000$ and it will definitely pay your debts off sooner than other miners.