Hate to say it, but one can insist on $20 notes, which are rarely ever counterfeited. That's all ATM machines give out anyway so clients shouldn't have a problem with it. If they whine about it, there's probably a good reason to be suspicious. I always try to accommodate reasonable requests to try to make a provider feel as comfortable and safe as possible. After all, it's the right thing to do in this business!! Many thanks to you ladies. Don't take any crap!!