Thank you for your response. It is not a problem with OTC stocks in general (already bought another one) but rather with the Univec stock. Somehow there is a restriction that was put in place by them, but fortunately I reached an agent that will try to clarify that with their American colleagues. Until then I guess it's waiting time for me

BTW Lynx belongs to the Interactive Broker group which is located in the US, so I have hopes that they will delete/change the restriction.