Amazon gift card offer with CC All apps subscription

That's a pretty good offer. Remember you are absolutely committing to the year, and must spend £600 or whatever the cost is; it's a legal contract to pay. Peru Bob, you are expected to give your date of birth to register so Adobe do know your age. Happily,  https://www.adobe.com/uk/legal/terms.html says "You must be 13 or older to register for an individual Adobe ID."

But is it the best offer? Perhaps not. If you can get student pricing, it may be cheaper overall. Typical prices are £20/month for first year and £30 for first year. Today there's a UK special of just £15/month for the first year. 

£600 - £150 = £450. £15 x 12 = £180.

Offer terms state the following:

https://www.adobe.com/uk/creativecloud/plans.html

UK 18+ only. Sign up to Adobe Creative Cloud All Apps plan for Individuals at Adobe.com between 11.02.2021 and 25.02.2021 to receive a £150 Amazon.co.uk Gift Card. Applicable to new subscribers only.12-month subscription required. One claim per subscription only. Excludes returning or renewing customers, Education, OEM or volume licensing customers. Promoter: Adobe Systems Europe Limited, Market House, 34-38 Market Street, Maidenhead, Berkshire, SL6 8AD, United Kingdom.

Just to be sure that this offer is legitimate, can you post a link to that offer?

I'm not sure if this is available to everyone or not so I am going to explain the offer. If you subscribe to the all apps plan (£49.94) you get an £150 amazon gift card emailed to you within 14-15 days after subscribing. Which is after the 14 day period therefore if you were to cancel you would not get a refund and you would have to pay a termination fee.