To pre-alert a package, upload the purchase invoice through your www.mbe.com.do account . This way, when your package arrives, the information is automatically validated, allowing it to be processed and shipped quickly and without delay. To pre-alert a package, simply visit our website www.mbe.com.do , click on "Enter Your E-box," then click on "Pre-alert New Purchase." Enter the tracking number, supplier/online store name, item value in USD, quantity, and item description. Upload the invoice and finally click on "Pre-alert Purchase." As soon as your package arrives at our Miami facilities, if the information matches, your package will be processed and placed in transit to the Dominican Republic.