Hi @Vadim Kristanovski !

 Make sure you're logged in to the correct account when redeeming your gift card. If you pay for your Deezer subscription plan through Google Play or iTunes, you’ll need to cancel via those stores and then redeem your Deezer gift card

here is helful link

Deezer Gift Cards

https://support.deezer.com/hc/en-gb/articles/212155109-Deezer-Gift-Cards

Hello @Vadim Kristanovski you can contact our Deezer Support Team and one of our agents will be able to help.
Thanks :)