Lowe's ended the "Iris by Lowe's" home security system and is giving partial refunds for recently purchased equipment Wilkesboro NC

Lowe's ended their Iris security system and is giving partial refunds. I purchased their products in July 2018 for $488 and I'm getting $200 back.
I ordered Iris by Lowe's home security products from lowes.com on 7/8/2018 for $416.46 (Order # 352512816). I ordered additional Iris products from Amazon.com in July of 2018 for $67.98 (before tax - orders 111-4146635-1459468 and 114-3534893-8233035).

Lowe's announced they are ending The Iris home security product and issuing partial refunds because some products may work with other security systems. I am receiving a $200 Visa gift card as a refund. I believe I should get a full refund since there is no guarantee their non-refunded products will work with the security system of my choice and the Iris by Lowe's equipment I purchased is less than a year old (about six months old).

I believe Lowe's is committing theft against hundreds or thousands of consumers. Customer support refused to do anything further for my situation - not even issue a check instead of gift card.