Transponder key Volvo V60

1. I have lost one of 2 transponder keys. Volvo branch wants 400 € for a new key with programming. is there any more convenient options in the Berlin room? 2. a professional key service (specialist for kfz transponder keys) told me “take good care of the remaining transponder key, if it is also gone, you can scrap the car. then there is no access to any control electronics and also a Volvo-erkstat comes then nich Is it possible that this is true?