Ok thats a good telltale sign.
The best place to get a new door seal is: http://www.espares.co.uk/
I would call them to place the order for the new seal, usually if you call, they will ship it the same day you call;-)
Please call Espares: 0844 9777 888 .
Also you will be sure to get the correct one for your freezer the first time lol ;-)
Once you have it please reply to me here so I can tll you how to do replace that.
In any case, I will stick with you until this is complete.
Please rate my service kindly.
Also it is the only way I am credited for my time and expertise with you.
Once you rate, I will be notified and will add your question to my priority list so you can reach me anytime until this problem is solved.
Then you can reach me by simply replying to this message anytime.
Thank you and have a great day!