All was very well at the camping. We were treated very well. Except for the moment of arrival.
We had made a reservation within 2 weeks before arrival. Apparently the camping had send us an email in which was stated that a downpayment was required. This mail I found in the spambox the day before our departure form Holland. Because the downpayment therefore was not received before our arrival - but still within the 2 weeks notice (!) - by the camping, our reservation was cancelled without informing us about this in advance. So when we arrived there was no place reserved for us.
The real problem was that there was no understanding nor empathy at all from the girl at the service desk. You can imagine that we didn't drive over 1000 km to the south of France just to hear that there is no place reserved for us, simply because we didn't make a downpayment (in time). Especially because in fact we did pay in time. We were very upset about this kind of welcome. Considering this point the customer service as well as the friendlyness can evidently be improved a lot.