What is the meaning of per month or part thereof?

The phrase "per month or part thereof" typically means that a charge or fee is applied for each complete month or any portion of a month. For instance, if a service is billed monthly, and you use it for even a single day in that month, you would still be charged for the entire month. This Wording ensures that the billing is straightforward, capturing any use in that time frame, regardless of how long it lasted.