Hi light0bud, when you signed up to join eBid you took out a subscription membership; which re-news automatically, until YOU cancel it. This is explained in the agreement.
If you would like to cancel your membership this can be done by accessing "my subscription", you can either downgrade to "buyer" status there. This will stop any further charges, eBid support are usually very good at answering inquiries; I would suggest you e-mail them at aupport@ebid.tv
It may help to read things before agreeing to them.