New Piaggio Xevo 125 has flat battery?

I bought a brand new Piaggio Xevo 125 in June in the UK but have recently moved to France. The bike took 16 days to arrive here in which time the battery had gone flat. I've tried to recharge the conventional way with a charger but although she now turns over, there is no spark so she won't run. Please advise. I know nothing about the technical side of the bike so please... in straight forward terminology!