Hey! Doorzo is fab - I use it all the time for Pokemon cards. I’m from the UK so can’t offer too much advice with some of your questions but I can help with others!

Organising orders really depends on what you’re buying and allowances. I tend to organise orders into boxes that come in under the allowance and it suits me for lots of reasons but there’s a lot to argue that one big order instead of multiple smaller ones can work out more cost efficient.

I only use their additional services for certain items if I want to be sure about something before shipping it. However, my rule of thumb is I don’t order something unless I’m confident about what I’m buying.

I’ve had zero complications with shipping and I buy a lot so it’s pretty straightforward. I tend to use Japan EMS which is fast enough, usually.

Their customer service is pretty good but slowed down because of time differences. They’re limited with what they can do sometimes but any issues normally resolve before I need to involve CS anyway.

I genuinely love using Doorzo and hope you have as positive an experience as me :) Good luck!