Free shipping contribution

[Aceicol]

Hi

 

I'm looking for a contribution that can allow someone to place a code into the site and then recieve free shipping. The only version close to this I've seen is a discount option, where you can set a percentage discount. Thats similar to what I want but wondered if I could have it with a set price deducted instead of a percentage.

 

Any help is greatly appreciated.

 

Thanks

Alex