Leaking door seal on hotpoint aquarius

Where in the world are you?

If you are in the UK, I can recommend a supplier of spare parts for all manner of household appliances, white goods etc.

http://www.espares.co.uk/

If you are not in the UK, maybe they deliver elsewhere but I am certain there are many, many similar websites worldwide.

I have used these people for a Servis washing machine door seal, Electrolux vacuum cleaner bags, flame sensor device for my old Creda gas cooker and other things and found them very reasonable.
They provide a rating for the level of competence requried to do the job, 'one spanner' is very easy and 'four spanners' requires someone with much more practical ability. My own washing machine door seal was 'three spanners'.

I hope this helps - good luck!

Chris.