Two questions.
1) You allude to parameters. What parameters are you referring to? How does he suggest samples be collected and transmitted to avoid contamination?
2) I wouldn't quibble over a couple of hundred but my "couple of thousand" might be $2,000 while his couple of thousand might be $7,000. It is critical to have him nail this number down more definitively if he's encouraging the collection of samples.
If Disotell wants reliable samples, there needs to be a protocol communicated to us that we can follow. Otherwise, the process may be contaminated and doomed from the start and no one wants to throw hard-earned money down a rat hole. I don't have the faintest idea what protocol is. Medical gloves, a clean instrument, and clean container? His clean may be different than mine.