Voucher...
I just sent them a message asking if they would consider bringing back Natural Balance (because of this thread).
They messaged back saying with the usual bumf, saying it's great to hear you like our scents and that they are memorable (as I am sure NB went 10+ years ago)
Went onto say, I'm sure you understand that any decisions on new or reintroduction of scents can't be shared as it is business sensitive information.
Then mentioned the new scents and offered to send a voucher, (from past experience, it is usually £3 for trying a product and £5 for sending a dodgy product back - which for me was the head and shoulders issue with BandM and Home Bargains).
So just message them, asking something, or complementing them etc, MOST (but not all) of the time, they will offer to send a voucher.
Don't ask them for coupons, or discounts as they will just refer you to their site
www.supersavvyme.co.uk where they put coupons up on all PandG products (sometimes there is some great coupons on there, eg got 2 boxes of 30 ariel pods for £3.50 a box, 2 bottles of 76 wash lenor for £1.75 and 2 bottles of flash bleach - FREE). Sometimes the coupons arent great - it varies.