Please inform Grand Hotel Millennium Sofia in advance of your expected arrival time. You can use the Special Requests box when booking, or contact the property directly with the contact details provided in your confirmation. Guests are required to show a photo identification and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply. Due to Coronavirus (COVID-19), this property is taking steps to help protect the safety of guests and staff. Certain services and amenities may be reduced or unavailable as a result. Due to Coronavirus (COVID-19), wearing a face mask is mandatory in all indoor common areas. Guests under the age of 18 can only check in with a parent or official guardian. License number: PK-19-13-108 A damage deposit of BGN 200 is required on arrival. This will be collected as a cash payment. You should be reimbursed on check-out. Your deposit will be refunded in full in cash, subject to an inspection of the property.