Visa application form question

Hello, I would want to seek advice from all of you. I have an Estonia Tourist visa in process through the Belgian consulate in my native country (Nigeria). I've read several stories on here about people's experiences with the long wait and their visa applications being forwarded to the foreigners office, as it is currently happening to me(25days today of Application submission). But my query is; my intended date of arrival in the EU area is in 7 days, but I just received the email of Application transfer to Foreigners Office, which I am sure will take more than a week for their Decision, but the difficulty here is;

My intended date of arrival to the EU territory is in 7days, but I just received the email of Application transfer to Foreigners Office, which I am sure will take more than a week for their decision, but the problem here is that I have paid hotel reservations and sightseeing tickets for the intended date, which should start in 7days time, and I have a grace period to cancel and refund if my travel date changes, but I will not be able for refund again from the first day of the intended arrival. SHOULD I CANCEL THE ITINERARY? Will it have no effect on my decision?

Please What Step should i take ? I will so much appreciate your advice and respond, Thanks in advance