Hi @hgf_cbv
You appeared for the certification long back. As per my knowledge Magento do mail hard copy of certificates now. You can print/view you certificate from your Magento account.
Please read https://magento-u-support.magento.com/hc/en-us/articles/360015979492-I-haven-t-received-my-hardcopy-...
Hello @hgf_cbv
Submit your concern to this email id: training@magento.com, Magento team will help you don't get worried about this.