As a customer you will get your goods but the supplier of those goods may not get his money.
The probable reason for ebuyers apparent troubles is in the comment made by ebuyers Marketing Director 'She added that during the past nine months it (ebuyer) had put signicant investment into a state-of-the-art, purpose-built warehouse and automated order fullment system, in line with expansion plans'.
ebuyer are simply strapped for cash having put money in to the new facility and one suspects that they have been using money destined to pay suppliers to help their cash flow. They aren't the first, and won't be the last, to do so.
If I understand the situation properly ebuyer seem to use third parties to insure their debts and it's those third parties who are having serious doubts about the level of cover they are offering.
ebuyers real problem will be if suppliers start to refuse to supply them, or insist on cash rather than normal credit terms.
Buy on your Credit Card, that gives you cover in case of problems.
Warranty cover for most items (ie PC's, Laptops etc) comes from the manufacturer in any case.