Thanks for your swift response.

Just to provide further information I have purchased these e-gift cards from completesavings.co.uk and not from Argos directly. 

here is the link where I bought Gift cards : https://www.completesavings.co.uk/Benefits/GiftCards

Link for T&C : https://www.completesavings.co.uk/terms-and-conditions

Thanks for the small claim details, will go through it and come back to you later if I can take this hassle  

Thanks for your swift response.

Just to provide further information I have purchased these e-gift cards from completesavings.co.uk and not from Argos directly. 

Hello there, we have bought Argos e-gift cards (worth of £350 around) and we saved them for a reason to buy a nice gadget for children. Unfortunately, we have not checked the dates and those cards are expired now. Spoken to Argos customer services and they are not helpful.

How do I escalate this issue and get the value of cards back. 

Let me know should you need more details. thank you