Freetrade free share

Salaams
When signing up to the Freetrade platform through a referral link, they provide you with a free share. In my case this was a share in non-shariah compliant stock. I have sold the share, however is this money that now sits in my account halal for me to use to trade or should I give it away in charity?

Wa alaykum salaam,

You should give that amount in charity.

JazakAllah for clarifying