What is the Othc charge?

Excuse me, could you please clarify what you mean by the "Othc charge"? Is this a specific fee or charge related to cryptocurrency transactions, or perhaps a term used in a particular financial context? I'm not immediately familiar with this term, so I'd appreciate it if you could provide some additional context or explanation. It's important to ensure that we're all on the same page when discussing financial and cryptocurrency-related matters.