Ebuyer are by far the best company i have dealt with on the internet, i do not need warning. I make many orders per week to them, and their delivery times and service are always very good. And by the way, they you can contact them by phone, the phone number is 0870 467 0753, although i think they are shut at weekends, but then thier prices are cheaper then everywhere else and they do state (if you read on the website) that they are ahut at weekends and do not accept telephone orders to keep costs lolw. I find their enotes system very good, always get a response within two days.
You have obviously encountered an unlucky problem, i am just making the point that people should not be "warned" away from ebuyer.
Good Luck ;-)