After the update I got a message on Control:PC saying that it already registred and to contact Meridian Marketing. I received three emails subsequently:
Originally Posted by 1st
Hi there,
Thank you for contacting Meridian.

Once you register your Meridian products online at www.meridian-audio.com/my-account/ you will receive a complimentary 3 month activation code for TIDAL.

Best Wishes,
Meridian Audio Marketing Team
marketing@meridian.co.uk
Originally Posted by 2nd
You have registered your new Meridian Audio product with this serial: MC200-xxxxxx

We will shortly send you your unique activation code to enable you to access your complimentary 3 month (90 day) subscription to TIDAL, the high fidelity music streaming service. Please allow up to 72 hours to receive your code.
Originally Posted by 3rd
I am delighted to enclose your unique activation code for TIDAL, the High Fidelity music streaming service. This entitles you to a complimentary 3 month (90 day) trial of TIDAL
That happened within a few hours.

Cheers!

Living room: Ansuz Mainz8 C2, Uptone Ethernet Regen, Grimm MU1, Audionote (UK) DAC 5 Special, TT2, M2RIAA, Audionote (UK) OTO Line SE Signature, Fleetwood Deville SQ
sold (Q1-2024): 818v3, DSP7200SE
Office: MS200, audio engine A2+
Spare: STAX SRM-323II, SR303, MC200 (Roon ROCK’ed),
Roon: life time subscription