Does anyone know hidden charges that may come up with TEFL (and if any are required for getting a visa)? Ex: Notarization etc.

I’ve seen that some companies that provide TEFL courses have hidden fees for physical copies, notarization, etc. and was wondering if Japan requires these sorts of things regarding the TEFL certificate, or if all jobs and Japan wants to see for obtaining the visa is a digital copy, if that even. I haven’t been able to find any information about all of this, or on what companies include potential charges like this upfront.

I was between TEFL org and the TEFL academy, but also looking at teacher record and TEFL universal because I don’t really know if many Japanese companies care all that much about where it’s from and accreditation etc. I’m also going to do the free 40 hour course with TEFL hero, though it may be worth just doing their 120 hour course for the price

Apologies if I’m confusing anything, I’m new to learning about all this and figuring out what may be best.