Going to macau

Hello,

I am a Sri Lankan , I came to Hong Kong on a Single entry Hong Kong business visa . I also already got a Single Entry Tourist entry permit to Macau . My departure flight is from Hong Kong . Now only I know that if i go to Macau I cannot come back to Hong Kong as my Hong Kong Visa is a single entry . I am going to Macau on ferry and will come back to Hong Kong in the same way . And I have already booked my hotels in macau for 3 days stay .
Is there a way or a place that I can make my visa double entry in Hong Kong ?
Please advice me . Thank you .