Special Offers - seeds / plants

Saw this and thought someone might be interested:

Mr Fothergills promotional code: GWF17MAR (5th packet of seed free - 3rd lot of plants free)
and "Backdoor herb collection free with any Gardeners World order - using code above.

Marshalls - save up to 25% on chilli collection - Use code: GWCP2

I really have no idea whether or not these would be a good deal.
(March 2017)