Supplement of today, 31 07 13:
Today I phoned the company and described the problem. Immediately a remittance of the amount or even a Neuverschickung the goods offered. I opted for a new chain of lights. What amazed me and pleased is that the light string is now gone to the post office! The Researcher at the other end was very nice and accommodating! Thanks for the fair and easy drain all together Note 1 for the seller! The broken chain of lights I do not need send it back, which is also very positive and relief (no pack, no way to post, etc.), really great!