I have just got this offer. I have upgraded to amazon unlimited music for one month at £14.99 and then I am going to downgrade to the one device at £3.99.
So the 3rd gen echo dot has cost me £11.99.
Amazon.co.uk: AMU + Echo Dot Promotion: Amazon Devices & Accessories
So the 3rd gen echo dot has cost me £11.99.
Amazon.co.uk: AMU + Echo Dot Promotion: Amazon Devices & Accessories