I have bought a lot (réally.. a lót!) of seeds on the LA last year and this year.
All were sent in padded envelopes and all arrived without any problems whatsoever.
Some took as long as 2 weeks to arrive, some, like Judy's (see the entry at the top of this thread) take just 5 days to get here
Last year I sent a big envelope with seeds to the Seed Bank and, yes, I had to fill in a customs form, but they too arrived without any problem.
I live in a small country, so I'm used to buying stuff in China (I ordered 500 centrifuge tubes this evening for less than $10 on AliExpress
), DL's from a nursery in Germany and Irisses from France and I am used to pay for shipping.
I just calculate how much shipping is divided by the number of items, and decide if it feels ok
Mayo