Just got the following text from Argos:
'Free vouchers - spend over £50 get 2 x £5, spend over £100 get 2 x £10 @Argos Reading Forbury Rtl Park until 18th Mar! Quote 9811788 at the Till
I guess this would suggest it's store specific so apologies if this doesn't work anywhere else but looks like a great deal for anyone in the area. If anyone tries elsewhere can they let me know their results. Cheers
Edit: all stores to go under revamp. Follow link below to register for when your local Argos goes under the knife! Offer should extend to all stores when the time comes
Also Metrocentre store.