"You could ask a friend etc"...
I used my wife's account to make a bank transfer, (on a Sunday) * and Green Lab said they hadn't received it. After a couple of emails to explain how I'd paid, and sending photo of the receipt, the problem was sorted out.
This was in the first week of the company doing business, so one can expect a few teething troubles!
Points to note
1 Keep a photographic copy of the transaction, so you can send it to them if there is a misunderstanding, or mix up
*2 Don't order when they are closed for business hours, if using point 1 !!
Green Lab are very nice people to do business with, and it was decent gear too, I'll definitely re-order from them.