post-free 
adjective & adverb British
Carried by post free of charge to the customer: [as adjective]: to arrange for a free survey fill in the post-free coupon [as adverb]: pamphlets were sent post-free to interested readers...
- This book is available by return of post (post-free) for £9.95 from our freepost address.
- To obtain Black Magic and Purple Passion at the special price of £12, post-free or for details about the International Black Plant Society contact us at te address below.
- All books ordered by telephone will be sent out post-free.
- disposable income
- disposal
- disposals store
- dispose
- disposed
- disposer
- disposition
- dispositive
- dispositor
- dispossess
- dispossession
- dispraise
- disproof
- disproportion
- disproportional
- disproportionality
- disproportionally
- disproportionate
- disproportionately
- disproportionateness
- disproportionation
- disprovable
- disproval
- disprove
- Dispur