BERLIN (AP) -- Justin Bieber had little time left to reclaim his pet monkey from the animal shelter where it has been since it was seized by German customs, officials said Friday, but he will have to pay thousands for the two-month stay even if he doesn't take the animal back.

A spokesman for Munich's customs office said the teenage singer had until midnight to contact them, otherwise capuchin monkey Mally will be transferred to a permanent home at a zoo or animal park elsewhere in Germany.

"If no further documents arrive then the seizure order comes into effect and the animal becomes the property of the German state," customs spokesman Thomas Meister told The Associated Press.

Mally was seized by German customs March 28 when Bieber failed to produce required vaccination and import papers after landing in Munich while on tour.

The now 20-week-old animal was quarantined and cared for at Munich's animal shelter, where manager Karl Heinz Joachim said Mally had fared well and gained weight.

The shelter has criticized Bieber for keeping such a young monkey as a pet, saying it shouldn't have been taken away from its mother until it was a year old. Experts say capuchin monkeys also need to be kept in groups as they are very sociable animals.