Sounds like what you do is give ukash your money and they keep it until you need it. Sorta like a gift card.
Not that good an idea, when you think about it.
Some sellers can accept you credit card directly. If you suggest it, some sellers will agree to accept a money order (International Postal Money Order is best). Very few will accept your personal cheque. And of course cash.....
Paypal and Propay are the only two services that will always be accepted by eBay, although not many sellers have accounts with and can accept Propay.
So basically, no.