Nechomah – Heter Mechira wine, when received as a gift prior to the Zman Bi’ur, is actually Muttar to drink since it’s only mekach u’memkar that’s Assur for Peiros Shvi’is – and if you’ve received it for free, you did nothing wrong. The issue is if it’s after the zman bi’ur, since if the Heter Mechira is not good (a separate conversation), then it’s peiros shvi’is that did not go throguh bi’ur when required – and are therefore assur to you forever – but also can’t be destroyed as they have kedushas shvi’is.
BTW, the psak I got on something like this is that since there are rabbanim whom one can be somech on for the heter mechira – including Rav Ovadia Yosef ZT”L, one is allowed to give such a product to someone who does use heter mechira for that person to use. As always, though, ask your local orthodox rabbi.
an Israeli Yid