If you have not received the actual cards through mail, it should arrive in the next two weeks. We are glad this finally happened. One more thing, as a condition for the green card,  you now need to be on the payroll for the petitioner. As discussed previously, the green card is conditioned on the job offer. To obtain pay stubs at this point will help you to eliminate any future issues with US immigration when it comes time to file for US citizenship or when you travel overseas. Noted you need at least 3-6 months to be on the payroll.